Question 1: Palette 1/211

Allen 1931 MCQ

Nucleus as a "cell organelle" was first described by ..... as early as......

A

Robert Hooke, 1665

B

Robert Brown, 1831

C

Flemming, 1931

D

Strasburger, 1831

Question 2: Palette 2/211

Allen MCQ

Which of the following is not correct?

A

Robert Brown discovered the cell.

B

Schleiden and Schwann formulated the cell theory.

C

Virchow explained that cells are formed from pre-existing cells.

D

A unicellular organism carries out its life activities within a single cell.

Question 3: Palette 3/211

Allen MCQ

The main arena of various types of activities of a cell is:

A

Nucleus

B

Plasma membrane

C

Mitochondria

D

Cytoplasm

Question 4: Palette 4/211

Allen MCQ

Cell membrane is composed of :-

A

Proteins and cellulose

B

Proteins and phospholipids

C

Proteins and carbohydrates

D

Proteins, phospholipids and some carbohydrates

Question 5: Palette 5/211

Allen MCQ

Carbohydrates are present in the plasma membrane in the form of :—

A

Hemicellulose

B

Cellulose

C

Starch

D

Glycoprotein

Question 6: Palette 6/211

Allen MCQ

Carbohydrates which are present in the cell membrane take part in :—

A

Transport of substance

B

Cell recognition

C

Attachment to microfilament

D

Attachment to microtubules

Question 7: Palette 7/211

Allen MCQ

plasma membraneis fluidstructure due to precence of:-

A

Carbohydrates

B

Lipid

C

Glycoprotein

D

Polysaccharide

Question 8: Palette 8/211

Allen MCQ

The fluid nature of the membrane is helpful in function of :-

A

Cell growth

B

Cell division

C

Endocytosis

D

All the above

Question 9: Palette 9/211

Allen MCQ

Plasma membrane is :—

A

Selectively permeable

B

Permeable

C

Impermeable

D

Semipermeable

Question 10: Palette 10/211

Allen MCQ

In fluid mosaic model of plasma membrane:

A

Upper layer is non-polar and hydrophilic

B

Polar layer is hydrophobic

C

Phospholipids form a bimolecular layer in middle part

D

Proteins form a middle layer

Question 11: Palette 11/211

Allen MCQ

Which of the following is correct:

A

Cells of all living organisms have a nucleus.

B

Both animal and plant cells have a well defined cell wall.

C

In prokaryotes, there are no membrane bound organelles.

D

Cells are formed de novo from abiotic materials.

Question 12: Palette 12/211

Allen MCQ

The plasma membrane consists mainly of:

A

proteins embedded in a carbohydrate bilayer

B

phospholipids embedded in a protein bilayer

C

proteins embedded in a phospholipid bilayer

D

proteins embedded in a polymer of glucose molecules

Question 13: Palette 13/211

Allen MCQ

Select the correct statement from the following regarding cell membrane: -

A

Lipids are arranged in a bilayer with polar heads towards the inner part

B

Fluid mosaic model of cell membrane was proposed by Singer and Nicolson

C

Na $^{+}$ and K $^{+}$ ions move across cell membrane by passive transport

D

Proteins make up 60 to 70% of the cell membrane

Question 14: Palette 14/211

Allen MCQ

The chemical substance abundantly present in middle lamella is :—

A

Cutin

B

Chitin

C

Lignin

D

Pectin

Question 15: Palette 15/211

Allen MCQ

Which of the following is capable of growth and gradually diminishes as the cell matures?

A

Primary cell wall

B

Secondary cell wall

C

Middle lamella

D

Cell membrane

Question 16: Palette 16/211

Allen MCQ

Plasmodesmata are: -

A

Connections between adjacent cells

B

Lignified cemented layers between cells

C

Locomotary structures

D

Membranes connecting the nucleus with plasmalemma

Question 17: Palette 17/211

Allen MCQ

Middle lamella is composed mainly of:-

A

Phosphoglycerides

B

Hemicellulose

C

Muramic acid

D

Calcium pectate

Question 18: Palette 18/211

Allen MCQ

Which one of the following structures between two adjacent cells is an effective transport pathway?

A

Plasmalemma

B

Plasmodesmata

C

Plastoquinone

D

Endoplasmic reticulum

Question 19: Palette 19/211

Allen MCQ

Algae have cell wall made up of:

A

Cellulose, hemicellulose and pectins

B

Cellulose, galactans and mannans

C

Hemicellulose, pectins and proteins

D

Pectins, cellulose and proteins

Question 20: Palette 20/211

Allen MCQ

Ingestion of large molecules by a cell is called -

A

Diffusion

B

Osmosis

C

Exocytosis

D

Endocytosis

Question 21: Palette 21/211

Allen MCQ

The main lipid components of the plant cell membrane are :-

A

Phosphodiester

B

Glycocalyx

C

Peptidoglycan

D

Phosphoglyceride

Question 22: Palette 22/211

Allen MCQ

Hydrolytic enzymes are abundantly found in which cell organelles?

A

Ribosome

B

Lysosome

C

Golgi body

D

Endoplasmic reticulum

Question 23: Palette 23/211

Allen MCQ

At which pH lysosomal enzymes become active?

A

pH - 5

B

pH - 7

C

pH - 8

D

pH - 10

Question 24: Palette 24/211

Allen MCQ

Which cell organelle(s) take(s) part in the formation of lysosomes?

A

Endoplasmic reticulum

B

Golgi bodies

C

Both (1) and (2)

D

Mitochondria

Question 25: Palette 25/211

Allen MCQ

A single unit membrane organelle is :-

A

Ribosome

B

Mitochondria

C

Chloroplast

D

Lysosome

Question 26: Palette 26/211

Allen MCQ

Rough E.R. mainly responsible for:-

A

Protein synthesis

B

Cell wall formation

C

Lipid synthesis

D

Cholesterol synthesis

Question 27: Palette 27/211

Allen MCQ

Which cell organelle synthesises steroids?

A

E. R.

B

Golgi body

C

Peroxisomes

D

Lysosomes

Question 28: Palette 28/211

Allen MCQ

Which of the following provides mechanical support and shape to the cell?

A

Golgi complex

B

Centrioles

C

Lysosomes

D

E.R.

Question 29: Palette 29/211

Allen MCQ

The smooth E.R. is mainly made up of :—

A

Cisternae

B

Tubules

C

Vesicle

D

All the above

Question 30: Palette 30/211

Allen MCQ

Ribophorins occur on the surface of :—

A

Rough E.R.

B

Smooth E.R.

C

Golgi body

D

Lysosome

Question 31: Palette 31/211

Allen MCQ

Which of the following is the site of lipid synthesis?

A

Rough ER

B

Smooth ER

C

Golgi bodies

D

Ribosome

Question 32: Palette 32/211

Allen MCQ

A major site for synthesis of lipids is:

A

Nucleoplasm

B

RER

C

SER

D

Symplast

Question 33: Palette 33/211

Allen MCQ

Golgi body originates from :-

A

E. R.

B

Mitochondria

C

Nucleus

D

Proplastid

Question 34: Palette 34/211

Allen MCQ

Main function of golgi-complex is :—

A

Fermentation

B

Phosphorylation

C

Respiration

D

Packaging of materials for secretion

Question 35: Palette 35/211

Allen MCQ

Golgi body is concerned with :-

A

Respiration

B

Secretion

C

Excretion

D

Digestion

Question 36: Palette 36/211

Allen MCQ

Important site for formation of glycoproteins and glycolipids is :-

A

Vacuole

B

Golgi apparatus

C

Plastid

D

Lysosome

Question 37: Palette 37/211

Allen MCQ

The Golgi complex plays a major role:

A

In post translational modification of proteins and glycosidation of lipids

B

In trapping the light and transforming it into chemical energy

C

In digesting proteins and carbohydrates

D

As energy transferring organelles

Question 38: Palette 38/211

Allen MCQ

Mitochondrial DNA is :-

A

Naked

B

Circular

C

Double stranded

D

All the above

Question 39: Palette 39/211

Allen MCQ

Power house of cell is :-

A

Nucleus

B

DNA

C

Mitochondria

D

ATP

Question 40: Palette 40/211

Allen MCQ

Semiautonomous cell organelle is :—

A

Mitochondria

B

Ribosome

C

Golgi body

D

Peroxisome

Question 41: Palette 41/211

Allen MCQ

The cell organelles having abundance of oxidizing enzymes is :—

A

Golgi body

B

Endoplasmic reticulum

C

Centrioles

D

Mitochondria

Question 42: Palette 42/211

Allen MCQ

Aerobic respiration is performed by :-

A

Mitochondria

B

Chloroplast

C

Ribosome

D

Golgi body

Question 43: Palette 43/211

Allen MCQ

Ground substance present inside the mitochondria is called :-

A

Stroma

B

Matrix

C

Cell sap

D

Cytoplasm

Question 44: Palette 44/211

Allen MCQ

ATP factories of cells are –

A

Chloroplast

B

Mitochondria

C

Ribosome

D

Nucleus

Question 45: Palette 45/211

Allen MCQ

Cristae are found in :-

A

Surface of grana

B

Surface of plasma membrane.

C

Inner Membrane of Mitochondria

D

Nuclear Membrane

Question 46: Palette 46/211

Allen MCQ

Double layered organelles are -

A

Ribosomes

B

Mitochondria

C

Lysosomes

D

Centrioles

Question 47: Palette 47/211

Allen MCQ

Which one of the following has its own DNA?

A

Peroxisome

B

Mitochondria

C

Dictyosome

D

Lysosome

Question 48: Palette 48/211

Allen MCQ

Anthocyanin pigment is found in :—

A

Chromoplasts

B

Amyloplasts

C

Cytoplasm

D

Cell sap

Question 49: Palette 49/211

Allen MCQ

Which cell organelle releases oxygen?

A

Mitochondria

B

Golgi–body

C

Chloroplast

D

Ribosome

Question 50: Palette 50/211

Allen MCQ

Chlorophyll in chloroplasts is located in –

A

Grana and stroma thylakoids

B

Only in stroma thylakoids

C

Stroma

D

Both grana and stroma

Question 51: Palette 51/211

Allen MCQ

Elaioplasts are absent in :-

A

Solanum tuberosum (Potato)

B

Cocos nucifera (Coconut)

C

Arachis hypogea (Ground nut)

D

Helianthus annuus (Sunflower)

Question 52: Palette 52/211

Allen MCQ

In higher plants, the chloroplasts are :-

A

Discoidal or oval

B

Spiral

C

Cup shaped

D

Reticulate

Question 53: Palette 53/211

Allen MCQ

Non-pigmented part of chloroplast is called:-

A

Thylakoids

B

Grana

C

Stroma

D

Lamellae

Question 54: Palette 54/211

Allen MCQ

Which of the following is known as "System of membranes"?

A

Lysosome

B

E.R.

C

Mitochondria

D

Chloroplast

Question 55: Palette 55/211

Allen MCQ

Cisternae are found -

A

Only in mitochondria

B

Only in Endoplasmic Reticulum

C

In Endoplasmic Reticulum and Golgi body

D

Only in Golgi body

Question 56: Palette 56/211

Allen MCQ

Vacuole in a plant cell: -

A

Lacks membrane and contains air

B

Lacks membrane and contains water and excretory substances

C

Is membrane-bound and contains storage proteins and lipids

D

is membrane-bound and contains water and excretory substances

Question 57: Palette 57/211

Allen MCQ

Which one of the following is not considered as a part of the endomembrane system?

A

Lysosome

B

Golgi complex

C

Peroxisome

D

Vacuole

Question 58: Palette 58/211

Allen MCQ

DNA is not found in :—

A

Nucleus

B

Mitochondria

C

Chloroplast

D

Ribosome

Question 59: Palette 59/211

Allen MCQ

Self duplication does not occur in :-

A

Mitochondria

B

Centrioles

C

Chloroplast

D

Ribosome

Question 60: Palette 60/211

Allen MCQ

"Palade particles" are :—

A

Ribosomes

B

Golgi vesicles

C

Lysosomes

D

Peroxisomes

Question 61: Palette 61/211

Allen MCQ

Polysome is a chain of :—

A

Pinosomes

B

Phagosomes

C

Microsomes

D

Ribosomes

Question 62: Palette 62/211

Allen MCQ

Prokaryotic ribosomes are 70 S, S refers to :

A

Svedberg unit

B

Smallest unit

C

Smooth

D

Speed

Question 63: Palette 63/211

Allen MCQ

Smallest cell organelle is :-

A

Lysosome

B

Centrosome

C

Ribosome

D

Golgibody

Question 64: Palette 64/211

Allen MCQ

70 S type of ribosomes are found in :-

A

Prokaryotic cells

B

Prokaryotic cells, chloroplasts and mitochondria

C

Mitochondria

D

Nucleus, mitochondria

Question 65: Palette 65/211

Allen MCQ

The Ribosomes are made up of -

A

DNA + Protein

B

RNA + Protein

C

DNA + RNA

D

Only protein

Question 66: Palette 66/211

Allen MCQ

Here 'S' (Svedberg's unit) stands for sedimentation coefficient then what are [A] & [B] for eukaryotic cell.

A

A - 40S, B - 60S

B

A - 60S, B - 40S

C

A - 80S, B - 60S

D

A - 40S, B - 80S

Question 67: Palette 67/211

Allen MCQ

polysome is formed by:-

A

A ribosome with several subunits

B

Ribosomes attached to each other in a linear arrangement

C

Several ribosomes attached to a single mRNA

D

Many ribosomes attached to a strand of endoplasmic reticulum

Question 68: Palette 68/211

Allen MCQ

What is true about ribosomes?

A

These are found only in eukaryotic cells

B

These are self-splicing introns of some RNAs

C

The prokaryotic ribosomes are 80S where "S" stands for sedimentation coefficient

D

These are composed of ribonucleic acid and proteins

Question 69: Palette 69/211

Allen MCQ

Which one of the following structures is an organelle within an organelle?

A

ER

B

Mesosome

C

Ribosome

D

Peroxisome

Question 70: Palette 70/211

Allen MCQ

Which of the following sets of cell organelles contain DNA?

A

Mitochondria, peroxisome

B

Plasma membrane, ribosome

C

Mitochondria, chloroplast

D

Chloroplast, dictyosome

Question 71: Palette 71/211

Allen MCQ

Mitochondria and chloroplast are considered to be endosymbionts of cell because they :-

A

Possess their own nucleic acid

B

Have capacity of ATP synthesis

C

Do not reproduce

D

All of the above

Question 72: Palette 72/211

Allen MCQ

Which of following is not common in chloroplasts & mitochondria?

A

Both are present in animal cells

B

Both contain their own genetic material

C

Both are present in eukaryotic cells

D

Both are present in plant cells

Question 73: Palette 73/211

Allen MCQ

During germination of seeds which cell organelle converts fatty acid into soluble carbohydrate?

A

Peroxisome

B

Glyoxysome

C

Golgi body

D

Lysosome

Question 74: Palette 74/211

Allen MCQ

The peroxisomes are associated with the phenomenon of :-

A

Krebs cycle

B

Degradation of $H_{2}O$

C

Anaerobic respiration

D

Photorespiration and degradation of $H_{2}O_{2}$

Question 75: Palette 75/211

Allen MCQ

Which of the following termed as highly specialised peroxisomes?

A

Glyoxysomes

B

Mitochondria

C

Golgi body

D

Lysosomes

Question 76: Palette 76/211

Allen MCQ

In which one of the following would you expect to find glyoxysomes?

A

Endosperm of wheat

B

Endosperm of castor

C

Palisade cells in leaf

D

Root hairs

Question 77: Palette 77/211

Allen MCQ

In which of the following tubulin protein is not present?

A

Plasma membrane

B

Cilia

C

Flagella

D

Microtubules

Question 78: Palette 78/211

Allen MCQ

Cilia and flagella both -

A

have 9 + 2 arrangement of microtubules

B

are protective structure of cells

C

are only present in protozoa animals

D

are outgrowth structures of cytoplasm

Question 79: Palette 79/211

Allen MCQ

Cytoskeleton is made up of: -

A

Proteinaceous filaments

B

Calcium carbonate granules

C

Callose deposits

D

Cellulosic microfibrils

Question 80: Palette 80/211

Allen MCQ

An elaborate network of filamentous proteinaceous structures present in the cytoplasm which helps in the maintenance of cell shape is called:

A

Endosplasmic Reticulum

B

Plasmalemma

C

Cytoskeleton

D

Thylakoid

Question 81: Palette 81/211

Allen MCQ

Basal body is :-

A

Centriole like

B

Plastid like

C

Ribosome like

D

Mitochondria like

Question 82: Palette 82/211

Allen MCQ

Microtubules are composed of :-

A

Actin protein

B

Myosin protein

C

Tubulin protein

D

Dynein protein

Question 83: Palette 83/211

Allen MCQ

Arrangement of microtubules in centriole is:-

A

$9 + 2$

B

$2 + 9$

C

$11 + 0$

D

$9 + 0$

Question 84: Palette 84/211

Allen MCQ

Genome is :-

A

Part of chromosome

B

Half part of a chromosome

C

Total DNA in cell

D

Total chromosomes in a gamete

Question 85: Palette 85/211

Allen MCQ

Nucleolar organizer region is a :-

A

Primary constriction

B

Secondary constriction

C

Tertiary constriction

D

Centriole

Question 86: Palette 86/211

Allen MCQ

Kinetochore is present on :-

A

Mitochondria

B

Peroxisome

C

Chromosome

D

Flagella

Question 87: Palette 87/211

Allen MCQ

Chromosomes are composed of :-

A

DNA, RNA, Histones, Non histones

B

DNA and Histones

C

DNA and RNA

D

DNA, RNA and Histones

Question 88: Palette 88/211

Allen MCQ

Which part of chromosome is concern with ageing of organism?

A

Centromere

B

Telomere

C

Kinetochore

D

Satellite

Question 89: Palette 89/211

Allen MCQ

The non-sticky chromosomal ends are known as—

A

Chromatids

B

Centromeres

C

Satellites

D

Telomeres

Question 90: Palette 90/211

Allen MCQ

Salivary gland chromosome is concerned with :-

A

vitellogenesis

B

formation of ribosomes

C

lipid synthesis

D

metamorphosis in some insects

Question 91: Palette 91/211

Allen MCQ

Part of chromosome after secondary constriction is called :—

A

Centromere

B

Telomere

C

Satellite

D

Nucleolar organiser

Question 92: Palette 92/211

Allen MCQ

If the centromere is close to chromosome's end and the two arms are unequal then the chromosome is called as :-

A

Metacentric

B

Submetacentric

C

Acrocentric

D

Telocentric

Question 93: Palette 93/211

Allen MCQ

Hetero-chromatin is :-

A

Darkly stained part of chromatin

B

Lightly stained part of cristae

C

Lightly stained part of grana

D

Scattered Lobes in cytoplasm

Question 94: Palette 94/211

Allen MCQ

Chromosome with centromere at one end, is:

A

Metacentric

B

Submetacentric

C

Telocentric

D

Acrocentric

Question 95: Palette 95/211

Allen MCQ

Nucleus is absent in :-

A

Cell of vascular cambium

B

Root hair cell

C

Companion cell

D

Members of mature sieve tube

Question 96: Palette 96/211

Allen MCQ

The telomeres of eukaryotic chromosomes consist of short sequences of –

A

Cytosine rich repeats

B

Adenine rich repeats

C

Guanine rich repeats

D

Thymine rich repeats

Question 97: Palette 97/211

Allen MCQ

The protein nucleoplasmin occurs on :-

A

Nuclear pore

B

Sieve cells

C

Nucleolus

D

Hetero chromatin

Question 98: Palette 98/211

Allen MCQ

Ribosomal RNA is actively synthesized in:-

A

Nucleoplasm

B

Ribosomes

C

Lysosomes

D

Nucleolus

Question 99: Palette 99/211

Allen MCQ

Protein synthesis in an animal cell occurs –

A

On ribosomes present in cytoplasm as well as in mitochondria

B

On ribosomes present in the nucleolus as well as in cytoplasm

C

Only on ribosomes attached to the nuclear envelope and endoplasmic reticulum

D

Only on the ribosomes present in cytosol

Question 100: Palette 100/211

Allen MCQ

The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monomer are known as:

A

Microtubules

B

Microfilaments

C

Intermediate filaments

D

Lamins

Question 101: Palette 101/211

Allen Match the Columns

Match the following and select the correct answer:
with

Column-I	Column-II
(a) Centriole (b) Chlorophyll (c) Cristae (d) Ribozymes	(i) Infoldings in mitochondria (ii) Thylakoids (iii) Nucleic acids (iv) Basal body cilia or flagella

A

(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)

B

(a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)

C

(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)

D

(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)

Question 102: Palette 102/211

Allen MCQ

DNA is not present in :-

A

Ribosomes

B

Nucleus

C

Mitochondria

D

Chloroplast

Question 103: Palette 103/211

Allen MCQ

The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are:-

A

Grana

B

Stroma lamellae

C

Stroma

D

Cristae

Question 104: Palette 104/211

Allen MCQ

The chromosomes in which centromere is situated close to one end are:

A

Acrocentric

B

Telocentric

C

Sub-metacentric

D

Metacentric

Question 105: Palette 105/211

Allen MCQ

Which one of the following is not an inclusion body found in prokaryotes?

A

Cyanophycean granule

B

Glycogen granule

C

Polysome

D

Phosphate granule

Question 106: Palette 106/211

Allen MCQ

Select the correct matching in the following pairs:

A

Smooth ER – Synthesis of lipids

B

Rough ER – Synthesis of glycogen

C

Rough ER – Oxidation of fatty acids

D

Smooth ER – Oxidation of phospholipids

Question 107: Palette 107/211

Allen MCQ

Which of the following structures is not found in prokaryotic cells?

A

Plasma membrane

B

Nuclear envelope

C

Ribosome

D

Mesosome

Question 108: Palette 108/211

Allen MCQ

Which of the following are not membrane-bound?

A

Mesosomes

B

Vacuoles

C

Ribosomes

D

Lysosomes

Question 109: Palette 109/211

Allen MCQ

Cellular organelles with membranes are :

A

Lysosomes, Golgi apparatus and mitochondria

B

Nuclei, ribosomes and mitochondria

C

Chromosomes, ribosomes and endoplasmic reticulum

D

Endoplasmic reticulum, ribosomes and nuclei

Question 110: Palette 110/211

Allen Match the Columns

Match the columns and identify the correct option:
with

Column-I	Column-II
(a) Thylakoids (b) Cristae (c) Cisternae (d) Chromatin	(i) Disc-shaped sacs in Golgi apparatus (ii) Condensed structure of DNA (iii) Flat membranous sacs in stroma (iv) Infoldings in mitochondria

A

(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)

B

(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)

C

(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

D

(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

Question 111: Palette 111/211

Allen MCQ

Mitochondria and chloroplast are :- (a) semi-autonomous organelles (b) formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery Which one of the following options is correct?

A

Both (a) and (b) are correct

B

(b) is true but (a) is false

C

(a) is true but (b) is false

D

Both (a) and (b) are false

Question 112: Palette 112/211

Allen MCQ

Microtubules are the constituents of :-

A

Cilia, Flagella and Peroxisomes

B

Spindle fibres, Centrioles and Cilia

C

Centrioles, Spindle fibres and Chromatin

D

Centrosome, Nucleosome and Centrioles

Question 113: Palette 113/211

Allen MCQ

A complex of ribosomes attached to a single strand of RNA is known as :-

A

Polysome

B

Polymer

C

Polypeptide

D

Okazaki fragment

Question 114: Palette 114/211

Allen MCQ

Which one of the following cell organelles is enclosed by a single membrane?

A

Mitochondria

B

Chloroplasts

C

Lysosomes

D

Nuclei

Question 115: Palette 115/211

Allen MCQ

Water soluble pigments found in plant cell vacuoles are :-

A

Xanthophylls

B

Chlorophylls

C

Carotenoids

D

Anthocyanins

Question 116: Palette 116/211

Allen MCQ

A cell organelle containing hydrolytic enzymes is:-

A

Ribosome

B

Mesosome

C

Lysosome

D

Microsome

Question 117: Palette 117/211

Allen MCQ

Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?

A

Ribosome

B

Chloroplast

C

Mitochondrion

D

Lysosome

Question 118: Palette 118/211

Allen MCQ

Which of the following is true for nucleolus?

A

Larger nucleoli are present in dividing cells.

B

It is a membrane-bound structure.

C

It takes part in spindle formation.

D

It is a site for active ribosomal RNA synthesis.

Question 119: Palette 119/211

Allen MCQ

The Golgi complex participates in :-

A

Fatty acid breakdown

B

Formation of secretory vesicles

C

Respiration in bacteria

D

Activation of amino acid

Question 120: Palette 120/211

Allen MCQ

Which of the following events does not occur in rough endoplasmic reticulum?

A

Protein folding

B

Protein glycosylation

C

Cleavage of signal peptide

D

Phospholipid synthesis

Question 121: Palette 121/211

Allen MCQ

Select the incorrect match :

A

Lampbrush chromosomes – Diplotene bivalents

B

Allosomes - Sex chromosomes

C

Submetacentric chromosomes - Sex chromosomes

D

Polytene – Oocytes of chromosomes amphibians

Question 122: Palette 122/211

Allen MCQ

The shorter and longer arms of a submetacentric chromosome are referred to as :-

A

s-arm and l-arm respectively

B

p-arm and q-arm respectively

C

q-arm and p-arm respectively

D

m-arm and n-arm respectively

Question 123: Palette 123/211

Allen MCQ

Which of the following pair of organelles does not contain DNA?

A

Mitochondria and Lysosomes

B

Chloroplast and Vacuoles

C

Lysosomes and Vacuoles

D

Nuclear envelope and Mitochondria

Question 124: Palette 124/211

Allen MCQ

Which of the following statements is not correct?

A

Lysosomes have numerous hydrolytic enzymes.

B

The hydrolytic enzymes of lysosomes are active under acidic pH.

C

Lysosomes are membrane bound structures.

D

Lysosomes are formed by the process of packaging in the endoplasmic reticulum.

Question 125: Palette 125/211

Allen MCQ

The concept of "Omnis cellula-e cellula" regarding cell division was first proposed by:

A

Rudolf Virchow

B

Theodore Schwann

C

Schleiden

D

Aristotle

Question 126: Palette 126/211

Allen MCQ

Which of the following statements regarding mitochondria is incorrect?

A

Outer membrane is permeable to monomers of carbohydrates, fats and proteins.

B

Enzymes of electron transport are embedded in outer membrane.

C

Inner membrane is convoluted with infoldings.

D

Mitochondrial matrix contains single circular DNA molecule and ribosomes.

Question 127: Palette 127/211

Allen MCQ

Which of the following cell organelles is present in the highest number in secretory cells?

A

Mitochondria

B

Golgi complex

C

Endoplasmic reticulum

D

Lysosomes

Question 128: Palette 128/211

Allen MCQ

Non-membranous nucleoplasmic structures in nucleus are the site for active synthesis of:-

A

Protein synthesis

B

mRNA

C

rRNA

D

tRNA

Question 129: Palette 129/211

Allen Match the Columns

Match the Column-I with Column-II :-

Column-I	Column-II
(a) Golgi apparatus s of protein (b) Lysosomes (c) Vacuoles (d) Ribosomes	(i) Synthesis of protein (ii) Trap waste and excretory products (iii) Formation of glycoproteins and glycolipids (iv) Digesting biomolecules

A

(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)

B

(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)

C

(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)

D

(a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)

Question 130: Palette 130/211

Allen MCQ

Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells:

A

Polysomes

B

Endoplasmic reticulum

C

Peroxisomes

D

Golgi bodies

Question 131: Palette 131/211

Allen MCQ

The organelles that are included in the endomembrane system are:

A

Endoplasmic reticulum, Mitochondria, Ribosomes and Lysosomes

B

Endoplasmic reticulum, Golgi complex, Lysosomes and Vacuoles

C

Golgi complex, Mitochondria, Ribosomes and Lysosomes

D

Golgi complex, Endoplasmic reticulum, Mitochondria and Lysosomes

Question 132: Palette 132/211

Allen MCQ

When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as:

A

Metacentric

B

Telocentric

C

Sub-metacentric

D

Acrocentric

Question 133: Palette 133/211

Allen Match the Columns

Match Column -I with Column - II.

Column-I	Column-II
(a) Cristae (b) Thylakoids (c) Centromere (d) Cisternae	(i) Primary constriction in chromosome (ii) Disc-shaped sacs in Golgi apparatus (iii) Infoldings in mitochondria (iv) Flattened membranous sacs in stroma of plastids

A

(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)

B

(a)-(i), (b)-(iv), (c)-(iii), (d)-(ii)

C

(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

D

(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)

Question 134: Palette 134/211

Allen MCQ

Which of the following is an incorrect statement?

A

Mature sieve tube elements possess a conspicuous nucleus and usual cytoplasmic organelles.

B

Microbodies are present both in plant and animal cells.

C

The perinuclear space forms a barrier between the materials present inside the nucleus and that of the cytoplasm.

D

Nuclear pores act as passages for proteins and RNA molecules in both directions between nucleus and cytoplasm.

Question 135: Palette 135/211

Allen Match the Columns

Match Column-I with Column-II.

Column-I	Column-II
(a) Metacentric (b) Acrocentric chromosome (c) Sub-metacentric (d) Telocentric chromosome	(i) Centromere situated close to the end forming one extremely short and one very long arms (ii) Centromere at the terminal end (iii) Centromere in the middle forming two equal arms of chromosomes (iv) Centromere slightly away from the middle forming one shorter arm and one longer arm

A

(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)

B

(a)-(ii),(b)-(iii), (c)-(iv), (d)-(i)

C

(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

D

(a)-(iii),(b)-(i), (c)-(iv), (d)-(ii)

Question 136: Palette 136/211

Allen MCQ

Which of the following statements with respect to Endoplasmic Reticulum is incorrect?

A

SER is devoid of ribosomes

B

In prokaryotes only RER are present

C

SER are the sites for lipid synthesis

D

RER has ribosomes attached to ER

Question 137: Palette 137/211

Allen MCQ

Which type of substance would face difficulty to pass through the cell membrane?

A

Substance with hydrophobic moiety

B

Substance with hydrophilic moiety

C

All substance irrespective of hydrophobic and hydrophilic moiety

D

Substance soluble in lipids

Question 138: Palette 138/211

Allen MCQ

If the pH in lysosomes is increased to alkaline, what will be the outcome?

A

Hydrolytic enzymes will function more efficiently

B

Hydrolytic enzymes will become inactive

C

Lysosomal enzymes will be released into the cytoplasm

D

Lysosomal enzymes will be more active

Question 139: Palette 139/211

Allen MCQ

Which of the following are NOT considered as the part of endomembrane system?
(A) Mitochondria
(B) Endoplasmic Reticulum
(C) Chloroplasts
(D) Golgi complex
(E) Peroxisomes

A

A, C and E only

B

A and D only

C

A, D and E only

D

B and D only

Question 140: Palette 140/211

Allen MCQ

Which of the following functions is carried out by cytoskeleton in a cell?

A

Protein synthesis

B

Motility

C

Transportation

D

Nuclear division

Question 141: Palette 141/211

Allen MCQ

Given below are two statements: Statement I : In bacteria, the mesosomes are formed by the extensions of plasma membrane. Statement II : The mesosomes, in bacteria, help in DNA replication and cell wall formation. In the light of the above statements, choose the most appropriate answer from the options given below:

A

Statement I is correct but Statement II is incorrect.

B

Statement I is incorrect but Statement II is correct.

C

Both Statement I and Statement II are correct.

D

Both Statement I and Statement II are incorrect.

Question 142: Palette 142/211

Allen MCQ

Which of the following statements are correct with respect of Golgi apparatus?
(A) It is the important site of formation of glycoprotein and glycolipids.
(B) It produces cellular energy in the form of ATP.
(C) It modifies the protein synthesized by ribosomes on ER.
(D) It facilitates the transport of ions.
(E) It provides mechanical support.

A

(B) and (C) only

B

(A) and (C) only

C

(A) and (D) only

D

(D) and (E) only

Question 143: Palette 143/211

Allen Match the Columns

Match Column-I with Column-II.

Column-I	Column-II
(a) Nucleolus (b) Centriole (c) Leucoplasts (d) Golgi apparatus	(i) Site of formation of glycolipid (ii) Organization like the cartwheel (iii) Site for active ribosomal RNA synthesis (iv) For storing nutrients

A

a-iii, b-ii, c-iv, d-i

B

a-ii, b-iii, c-i, d-iv

C

a-iii, b-iv, c-II, d-i

D

a-i, b-ii, c-iii, d-iv

Question 144: Palette 144/211

Allen MCQ

The DNA present in chloroplast is :

A

Linear, double stranded

B

Circular, double stranded

C

Linear, single stranded

D

Circular, single stranded

Question 145: Palette 145/211

Allen Match the Columns

Match List I with List-II :

Column-I	Column-II
(a) Axoneme (b) Cartwheel pattern (c) Crista (d) Satellite	(i) Centriole (ii) Cilia and flagella (iii) Chromosome (iv) Mitochondria

A

a-iv, b-iii, c-ii, d-i

B

a-iv, b-ii, c-iii, d-i

C

a-ii, b-iv, c-i, d-iii

D

a-ii, b-i, c-iv, d-iii

Question 146: Palette 146/211

Allen MCQ

Given below are two statements: Statement-I : Mitochondria and chloroplasts are both double membrane bound organelles. Statement-II : Inner membrane of mitochondria is relatively less permeable, as compared to chloroplast. In the light of the above statement, choose the most appropriate answer from the options given below :

A

Both Statement I and Statement II are correct.

B

Both Statement I and Statement II are incorrect.

C

Statement I is correct but Statement II is incorrect.

D

Statement I is incorrect but Statement II is correct.

Question 147: Palette 147/211

Allen Match the Columns

Match List-I with List-II :

Column-I	Column-II
(a) Flemming (b) Robert Brown (c) George Palade (d) Camillo Golgi	(i) Disc shaped sac or cisternae near cell nucleus (ii) Chromatin (iii) Ribosomes (iv) Nucleus

A

a-ii, b-iv, c-iii, d-i

B

a-ii, b-iii, c-i, d-iv

C

a-i, b-ii, c-iii, d-iv

D

a-iv, b-ii, c-iii, d-i

Question 148: Palette 148/211

Allen Match the Columns

Match Column-I with Column-II :

Column-I	Column-II
(a) Metacentric chromosome (b) Sub-metacentric chromosome (c) Acrocentric chromosome (d) Telocentric chromosome	(i) Chromosome has a terminal centromere (ii) Middle centromere forming two equal arms of chromosome (iii) Centromere is slightly away from the middle of chromosome resulting into two unequal arms (iv) Centromere is situated close to its end forming one extremely short and one very long arm

A

a-ii, b-i, c-iv, d-iii

B

a-iv, b-i, c-ii, d-iii

C

a-i, b-ii, c-iii, d-iv

D

a-ii, b-iii, c-iv, d-i

Question 149: Palette 149/211

Allen Match the Columns

Match Column-I with Column-II.

Column-I	Column-II
(a) F₁ Particles (b) Histones (c) Axoneme (d) Cisternae	(i) Chromosomes (ii) Cilia (iii) Golgi apparatus (iv) Mitochondria

A

a-ii, b-i, c-iv, d-iii

B

a-iv, b-i, c-ii, d-iii

C

a-iv, b-i, c-iii, d-ii

D

a-iv, b-iii, c-i, d-ii

Question 150: Palette 150/211

Allen MCQ

The figure given below shows the structure of plasma membrane, with its parts labelled from A to E, Identify the correct :-

A

A → 52 percent of erythrocyte membrane

B

B and E → Movement of these can be measured as fluidity of membrane

C

C → Help in facilitated transport of polar molecules

D

D → Its polar tail contains saturated hydrocarbons

Question 151: Palette 151/211

Allen MCQ

Contractile vacuole :- Q. No. 3 to 7 are based on given diagram :-

A

is a membrane less structure

B

is formed by engulfing the food

C

is important for osmoregulation

D

is called suicidal bag of cell

Question 152: Palette 152/211

Allen MCQ

Which represents aqueous compartments?

A

A, B

B

D, C

C

A, D

D

B, D

Question 153: Palette 153/211

Allen MCQ

What is the average value of labelled F?

A

0.2 μm

B

0.5 μm

C

1.0 μm

D

4.1 μm

Question 154: Palette 154/211

Allen MCQ

Cristae are infoldings of ......., present toward the ......

A

E and B

B

B and C

C

C and D

D

F and D

Question 155: Palette 155/211

Allen MCQ

Single, circular DNA molecule is found in :-

A

B

B

D

C

E

D

C

Question 156: Palette 156/211

Allen MCQ

D contains :-
(i) few RNA molecules (ii) 70s ribosome
(iii) Enzymes (iv) Circular DNA

A

ii, iv

B

i, ii, iv

C

ii, iii, iv

D

i, ii, iii, iv

Question 157: Palette 157/211

Allen MCQ

(a) granular structure
(b) first observed under the electron microscope as dense particles by George Palade
(c) composed of RNA and proteins
(d) not surrounded by any membrane
Above given statements are true for which cell organelle?
Options :-

A

Nucleolus

B

Ribosome

C

Lysosome

D

Chloroplast

Question 158: Palette 158/211

Allen MCQ

Find incorrect statement with regard to centrosome and centrioles :-
(a) Centrosome is surrounded by amorphous pericentriolar material
(b) In centrosome, both centrioles lie parallel to each other in which each has an organisation like the cartwheel
(c) Centrioles are made up of nine unevenly spaced peripheral fibrils of tubulin
(d) Hub is the central proteinaceous part of centriole
(e) Proteinaceous radial spokes connect hub to peripheral triplets
Options :-

A

a, b, e

B

only b

C

b, c

D

All are correct

Question 159: Palette 159/211

Allen MCQ

....observed that all plant tissues are made up of cells. At the same time......, studied different type of animal cells.

A

Rudolf Virchow and Robert Brown respectively

B

Mathias Schleiden and Theodore Schwann respectively

C

Theodore Schwann and Mathias Schleiden respectively

D

Robert Hooke and Schleiden respectively

Question 160: Palette 160/211

Allen MCQ

According to fluid-mosaic model, the quasi-fluid nature of.....enables lateral movement of.....within the overall bilayer. This ability to move within the membrane is measured as its...
(i) Carbohydrates (ii) Lipids
(iii) Proteins (iv) Fluidity
(v) Selective permeability
Correct sequence is :-

A

ii, iii, iv

B

iii, i, iv

C

iii, ii, v

D

i, ii, iv

Question 161: Palette 161/211

Allen MCQ

One of the most important functions of the plasma membrane is :-

A

Formation of nuclear membrane

B

Transport of molecules across it

C

Exocytosis

D

Detoxification

Question 162: Palette 162/211

Allen MCQ

....can not pass through the lipid bilayer, they require a carrier protein of the membrane to facilitate their transport across the membrane

A

Nonpolar molecules

B

Polar molecules

C

Hydrophobic molecules

D

Both (2) and (3)

Question 163: Palette 163/211

Allen MCQ

Na $^{+}$ /K $^{+}$ pump is an example of :-

A

Passive transport

B

Osmosis

C

Active transport

D

Simple diffusion

Question 164: Palette 164/211

Allen MCQ

Mark the incorrect match for transport of molecules across the membrane :-

A

Neutral solute – simple diffusion

B

Water – osmosis

C

Non-polar molecules – facilitate diffusion

D

ATP utilized – active transport BCL157

Question 165: Palette 165/211

Allen MCQ

Mitochondria :-
(a) are easily visible under the microscope
(without specifically stained)
(b) are typically sausage-shaped or
cylindrical
(c) are double membrane bound structures
(d) have two aqueous compartments
Options :-

A

a, d correct and b, c incorrect

B

a, b correct and c, d incorrect

C

a incorrect and b, c, d correct

D

a, d incorrect and b, c correct

Question 166: Palette 166/211

Allen MCQ

Inner mitochondrial membrane forms infoldings called :-

A

Thylakoid

B

Cisternae

C

Oxysomes

D

Cristae

Question 167: Palette 167/211

Allen MCQ

The number of mitochondria per cell is variable, depending on :-

A

Size of cells

B

Shape of cells

C

Physiological activity of cells

D

Type of genes present in mitochondrial DNA

Question 168: Palette 168/211

Allen MCQ

Which one of the following is not a component of endomembrane system?
(a) Endoplasmic reticulum
(b) Golgi body (c) Lysosome
(d) Vacuole (e) Nucleus
Options :-

A

Both a and c

B

Only c

C

d and e both

D

Only e

Question 169: Palette 169/211

Allen MCQ

Membrane bound vesicular structures formed by the process of packaging in the Golgi apparatus and filled with hydrolytic enzymes, are called :-

A

Contractile vacuoles

B

Food vacuoles

C

Lysosomes

D

Centrosome BCL162

Question 170: Palette 170/211

Allen MCQ

Eukaryotes have 80S, while prokaryotes have 70S ribosomes in cytoplasm. Here "S": (a) denotes sedimentation coefficient (b) is an indirect measure of density (c) is an indirect measure of size Options :-

A

a only

B

a and b only

C

b and c only

D

a, b and c

Question 171: Palette 171/211

Allen MCQ

In r-RNA, "r" stands for :-

A

Reversible

B

Ribozyme

C

Ribosomal

D

Recognition

Question 172: Palette 172/211

Allen MCQ

Interphase nucleus has a loose and indistinct network of nucleoprotein fibres called chromatin, but during different stages of cell division, cells show "structured chromosomes" in place of the:-

A

Nucleus

B

Plastids

C

Mitochondria

D

Vacuole

Question 173: Palette 173/211

Allen MCQ

Space between parallel nuclear membranes is called perinuclear space which is :-

A

10–50 nm

B

0.1 – 0.4 μm

C

10 – 50 Å

D

1 – 4 nm

Question 174: Palette 174/211

Allen MCQ

A single human cell has approximately ..... long thread of DNA distributed among its ..... chromosomes:-

A

2 cm, 46

B

2 metre, 46

C

2 cm, 23

D

2 metre, 23

Question 175: Palette 175/211

Allen MCQ

Regarding to cell membrane find out the odd one

A

Fluid mosaic model is widely accepted model

B

Quasi fluid nature of lipids enables the lateral movement of proteins

C

All types of molecules can easily pass through membrane

D

Fluid nature of membrane is also important for cell growth & formation of intercellular junctions

Question 176: Palette 176/211

Allen MCQ

Which type of solutes may move across plasma membrane from higher to lower concentration along concentration gradient without help of transmembrane proteins?

A

Positively charged solutes

B

Negatively charged solutes

C

Neutral solutes

D

Any of the above

Question 177: Palette 177/211

Allen MCQ

Select out the wrong statement -

A

Neutral solute can move according to concentration gradient across the nonpolar lipid bilayer

B

Water can also move according to concentration gradient across the plasma membrane.

C

Non polar molecules can not pass through non polar lipid bilayer

D

Na $^{+}$ & K $^{+}$ can move across membrane through active transport

Question 178: Palette 178/211

Allen MCQ

Which of the following is not a function of cell wall?

A

Protection from mechanical damage and infection

B

Cell to cell interaction

C

Barrier to undesirable macromolecules

D

Secretion

Question 179: Palette 179/211

Allen MCQ

Which of the following components is not a constituent of algal cell wall?

A

Cellulose

B

Galactans

C

Mannans

D

Chitin

Question 180: Palette 180/211

Allen MCQ

Endoplasmic reticulum helps in :-

A

The transport of substances

B

Synthesis of lipoproteins

C

Synthesis of glycogen

D

All of the above

Question 181: Palette 181/211

Allen MCQ

Regarding to endoplasmic reticulum which of the following statements are wrong?

A

ER divides the intra cellular space into two distinct compartments

B

RER frequently observed in cells actively involved in secretion

C

In animals steroidal hormones are synthesized in RER

D

SER is the major site of lipid synthesis

Question 182: Palette 182/211

Allen MCQ

Golgi complex receives proteins for modification from RER at which face?

A

Cis face

B

Trans face

C

Concave face

D

Maturing face

Question 183: Palette 183/211

Allen MCQ

Classification of plastids into chloroplast, chromoplast and leucoplast is based on -

A

Stored food

B

Pigments

C

Structure

D

Size

Question 184: Palette 184/211

Allen MCQ

Chloroplast of higher plants contains -

A

Only chlorophyll

B

Only carotenoids

C

Both chlorophyll and carotenoids

D

Phycobilin

Question 185: Palette 185/211

Allen MCQ

Regarding to cilia and flagella which of the following statements is incorrect?

A

Cilia is small and flagella is long

B

Cilia can move either cell or surrounding fluid

C

Flagella is responsible for movement of surrounding fluid

D

Cilia work like oars

Question 186: Palette 186/211

Allen MCQ

Plasma membrane covers the central core of the flagella and cilia this central core is known as -

A

Bridge

B

Axoneme

C

Radial spoke

D

Arms

Question 187: Palette 187/211

Allen MCQ

Radial spokes of flagella helps in connection between-

A

Peripheral triplets

B

Central singlet microtubules

C

Peripheral doublet and central sheath

D

Two successive peripheral doublets

Question 188: Palette 188/211

Allen MCQ

Classification of chromosomes is based on -

A

the size of satellite

B

Number of telomeres

C

Position of centromere

D

Position of secondary constriction

Question 189: Palette 189/211

Allen MCQ

Chromosome with centromere slightly away from center is known as -

A

Metacentric

B

Submetacentric

C

Acrocentric

D

Telocentric

Question 190: Palette 190/211

Allen MCQ

Find out the incorrect about secondary constriction -

A

Non staining

B

Constant position

C

Known as satellite

D

Present in some chromosomes

Question 191: Palette 191/211

Allen Match the Columns

Match the column I and II and choose correct option :-
Column-I

Column-I	Column-II
(a) Plasma membrane (b) Centriole (c) Ribosomes (d) Plastids (e) Lysosome	(i) Helps in cell division of animal cells (ii) Protein synthesis (iii) Not present in animal cell (iv) Rich in hydrolytic enzymes (v) Barrier between cytoplasm and outer environment, in an animal cell.

A

a - v, b - i, c- ii, d - iii, e- iv

B

a - v, b - iii,c- ii,d - i, e - iv

C

a - iv,b - iii,c- ii,d- i, e- v

D

a - ii,b- iv, c-iii, d- i, e- v

Question 192: Palette 192/211

Allen MCQ

(A) Unicellular organisms are capable of independent existence.
(B) Cell is the fundamental structural and functional unit of all unicellular organisms only.
(C) All cells arise from pre-existing cells.
(D) The cytoplasm is the main arena of cellular activities of cells.
Options :-

A

Statements A, C and D are correct

B

Statements A, B and D are not correct

C

Statements A, B and C are correct

D

Statements B, C and D are not correct

Question 193: Palette 193/211

Allen MCQ

Which one of the following statements is not correct for the vacuoles?

A

Contractile vacuoles are helpful in excretion

B

Food vacuoles are formed by engulfing the food particles

C

Sap vacuole is bound by tonoplast

D

Tonoplast facilitates the transport of ions against the concentration gradient into cytoplasm

Question 194: Palette 194/211

Allen MCQ

Which one of the following statements is not correct for the vacules?
(A)Contractile vacules are helpful in excretion
(B) Single stranded circular DNA is present in matrix
(C) Protein synthesis occurs in Mitochondrial matrix
(D) Outer membrane is highly folded and form cristae
Options :-

A

A, C and D only

B

A, B and D only

C

Only C

D

A and D only

Question 195: Palette 195/211

Allen MCQ

Which of the following are correct for the cell which has naked ds circular DNA?
(a) Both 70S and 80S ribosomes
(b) Histone absent
(c) Compartmentalisation of cytoplasm absent
(d) Always diploid

A

a and d

B

b and c

C

a and c

D

b and d

Question 196: Palette 196/211

Allen MCQ

Which of the following is/are function(s) of Golgi complex?
(I) Modification of lipids and proteins
(II) Detoxification
(III) Formation of acrosome
(IV) Glycogen synthesis & breakdown
Choose the correct option –

A

I and II are incorrect

B

I and III are correct

C

II is incorrect and remaining are correct

D

II and III are incorrect

Question 197: Palette 197/211

Allen MCQ

If living cells, similar to those found on earth, were found on another planet, where there was no oxygen, then which cell organelle would most probably be absent?

A

Ribosomes

B

Golgi apparatus

C

Mitochondria

D

Endoplasmic Reticulum

Question 198: Palette 198/211

Allen MCQ

Plant and prokaryotic cells are similar with each other but differ from animal cells:-

A

In possessing 70 S ribosomes

B

In possessing cell wall

C

In possessing mitochondria

D

In possessing chloroplasts

Question 199: Palette 199/211

Allen MCQ

Ratio of protein and lipid in the membrane of erythrocytes of human being is :-

A

1.8

B

1.3

C

0.80

D

0.60

Question 200: Palette 200/211

Allen MCQ

A student did the cell fractionation of a tissue but forgot to label his tubes. The content of one tube when studied showed organelles bounded by membrane with activity of catalase enzyme. These organelles could be :-

A

SER

B

Chloroplast

C

Lysosome

D

Peroxisome

Question 201: Palette 201/211

Allen MCQ

Given below are two statement - Statement-I :- In plants, the tonoplast facilitates the transport of a number of ions and other materials against concentration gradient into the vacuole. Statement-II :- Golgi apparatus is the important site of formation of glycoprotein and glycolipids. In the light of the above statements, choose the correct answer from the options given below -

A

Both statement I and statement II are correct

B

Both statement I and statement II are incorrect

C

Statement I is correct but statement II is incorrect

D

Statement I is incorrect but statement II is correct

Question 202: Palette 202/211

Allen MCQ

Assertion (A) : Cell wall is a living rigid structure which form outer covering for the plasma membrane of fungi and plants. Reason (R) : Secondary cell wall is formed on the outer (towards middle lamella) side of the cell.

A

Both Assertion and Reason are True and the Reason is a correct explanation of the Assertion.

B

Both Assertion and Reason are True but Reason is not a correct explanation of the Assertion.

C

Assertion is True but the Reason is False.

D

Both Assertion and Reason are False.

Question 203: Palette 203/211

Allen MCQ

Assertion (A) : Chloroplast & Mitochondria are considered as "Semi-autonomous organelle" of the cell. Reason (R) : Both the organelle possess their own genetic material and have their own protein synthesising machinery.

A

Both Assertion and Reason are True and the Reason is a correct explanation of the Assertion.

B

Both Assertion and Reason are True but Reason is not a correct explanation of the Assertion.

C

Assertion is True but the Reason is False.

D

Both Assertion and Reason are False.

Question 204: Palette 204/211

Allen MCQ

Given below are two statement - Statement-I :- At number of places the nuclear envelop is interrupted by minute pores. Statement-II :- Material of the nucleus stained by the acidic dye was given the name chromatin by Flemming. In the light of the above statements, choose the correct answer from the options given below -

A

Both statement I and statement II are correct

B

Both statement I and statement II are incorrect

C

Statement I is correct but statement II is incorrect

D

Statement I is incorrect but statement II is correct

Question 205: Palette 205/211

Allen MCQ

Read the following statements carefully and select the option which includes incorrect statements -
(a) RER is frequently observed in the cells actively involved in lipid synthesis & secretion.
(b) The SER is the major site for protein synthesis
(c) The golgi cisternae are concentrically arranged near the nucleus.
(d) Lysosomes are rich in alkaline hydrolases.

A

Statement (a), (b) and (c)

B

Statement (a), (b) and (d)

C

Statement (b), (c) and (d)

D

Statement (a), (c) and (d)

Question 206: Palette 206/211

Allen MCQ

New cells generate from-

A

bacterial fermentation

B

regeneration of old cells

C

pre-existing cells

D

abiotic materials

Question 207: Palette 207/211

Allen MCQ

Select the wrong statement from the following:

A

The chloroplasts are generally much larger than mitochondria

B

Both chloroplasts and mitochondria contain an inner and an ou

C

Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane

D

Both chloroplasts and mitochondria contain DNA

Question 208: Palette 208/211

Allen MCQ

Identify the components labelled A, B, C and D in the diagram below from the list (i) to (viii) given with -

Components:
(i) Cristae of mitochondria
(ii) Inner membrane of mitochondria
(iii) Cytoplasm
(iv) Smooth endoplasmic reticulum
(v) Rough endoplasmic reticulum
(vi) Mitochondrial matrix
(vii) Cell vacuole
(viii) Nucleus

A

A-(i), B-(iv), C-(viii), D-(vi)

B

A-(vi) B-(v), C-(iv), D-(vii)

C

A—(v), B—(i), C—(iii), D—(ii)

D

A—(v), B—(iv), C—(viii), D—(iii)

Question 209: Palette 209/211

Allen MCQ

The figure below shows the structure of a mitochondrion with its four parts labelled (A), (B), (C) and (D). Select the part correctly matched with its function.

A

Part (A): Matrix - major site for respiratory chain enzymes

B

Part (D): Outer membrane - gives rise to inner membrane by splitting

C

Part (B): Inner membrane - forms infoldings called cristae

D

Part (C): Cristae - possess single circular DNA molecule and ribosomes

Question 210: Palette 210/211

Allen MCQ

Which one of the following cellular parts is correctly described?

A

Ribosomes - those on chloroplasts are larger (80 S) while those in the cytoplasm are smaller (70 S)

B

Lysosomes-optimally active at a pH of about 8.5

C

Thylakoids-flattened membranous sacs forming the grana of chloroplasts

D

Centrioles - sites for active RNA synthesis

Question 211: Palette 211/211

Allen MCQ

Which one of the following organelle in the figure correctly matches with its function?

A

Rough endoplasmic reticulum, protein synthesis

B

Rough endoplasmic reticulum, formation of glycoproteins

C

Golgi apparatus, protein synthesis

D

Golgi apparatus, formation of glycolipids