Cell_ The Unit Of Life

597 Questions Start Allen Test
Q401 Allen MITOCHONDRIA AND PLASTID MCQ
In higher plants, the chloroplasts are :-
A.
Discoidal or oval
B.
Spiral
C.
Cup shaped
D.
Reticulate
Q402 Allen MITOCHONDRIA AND PLASTID MCQ
Non-pigmented part of chloroplast is called:-
A.
Thylakoids
B.
Grana
C.
Stroma
D.
Lamellae
Q403 Allen INTRA-ENDOMEMBRANE SYSTEM MCQ
Which of the following is known as "System of membranes"?
A.
Lysosome
B.
E.R.
C.
Mitochondria
D.
Chloroplast
Q404 Allen INTRA-ENDOMEMBRANE SYSTEM 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
Q405 Allen INTRA-ENDOMEMBRANE SYSTEM 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
Q406 Allen INTRA-ENDOMEMBRANE SYSTEM 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
Q407 Allen RIBOSOME MCQ
DNA is not found in :—
A.
Nucleus
B.
Mitochondria
C.
Chloroplast
D.
Ribosome
Q408 Allen RIBOSOME MCQ
Self duplication does not occur in :-
A.
Mitochondria
B.
Centrioles
C.
Chloroplast
D.
Ribosome
Q409 Allen RIBOSOME MCQ
"Palade particles" are :—
A.
Ribosomes
B.
Golgi vesicles
C.
Lysosomes
D.
Peroxisomes
Q410 Allen RIBOSOME MCQ
Polysome is a chain of :—
A.
Pinosomes
B.
Phagosomes
C.
Microsomes
D.
Ribosomes
Q411 Allen RIBOSOME MCQ
Prokaryotic ribosomes are 70 S, S refers to :
A.
Svedberg unit
B.
Smallest unit
C.
Smooth
D.
Speed
Q412 Allen RIBOSOME MCQ
Smallest cell organelle is :-
A.
Lysosome
B.
Centrosome
C.
Ribosome
D.
Golgibody
Q413 Allen RIBOSOME MCQ
70 S type of ribosomes are found in :-
A.
Prokaryotic cells
B.
Prokaryotic cells, chloroplasts and mitochondria
C.
Mitochondria
D.
Nucleus, mitochondria
Q414 Allen RIBOSOME MCQ
The Ribosomes are made up of -
A.
DNA + Protein
B.
RNA + Protein
C.
DNA + RNA
D.
Only protein
Q415 Allen RIBOSOME 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
Q416 Allen RIBOSOME 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
Q417 Allen RIBOSOME 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
Q418 Allen RIBOSOME MCQ
Which one of the following structures is an organelle within an organelle?
A.
ER
B.
Mesosome
C.
Ribosome
D.
Peroxisome
Q419 Allen INTRA-MITOCHONDRIA, PLASTID AND RIBOSOMES Match the Columns
Match the following Column-I with Column-2
Column-IColumn-II
(a)Ascus
(b)Basidium
(c)Protista
(d)Cyanobacteria
(e)Animalia
(i)Spirulina
(ii)Penicillium
(iii)Agaricus
(iv)Euglena
(v)Sponges
Q420 Allen INTRA-MITOCHONDRIA, PLASTID AND RIBOSOMES MCQ
Which of the following sets of cell organelles contain DNA?
A.
Mitochondria, peroxisome
B.
Plasma membrane, ribosome
C.
Mitochondria, chloroplast
D.
Chloroplast, dictyosome
Q421 Allen INTRA-MITOCHONDRIA, PLASTID AND RIBOSOMES 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
Q422 Allen INTRA-MITOCHONDRIA, PLASTID AND RIBOSOMES 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
Q423 Allen MICROBODIES, CYTOSKELETON AND CENTROSOMES CENTRIOLE MCQ
During germination of seeds which cell organelle converts fatty acid into soluble carbohydrate?
A.
Peroxisome
B.
Glyoxysome
C.
Golgi body
D.
Lysosome
Q424 Allen MICROBODIES, CYTOSKELETON AND CENTROSOMES CENTRIOLE 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 $H_{2}O_{2}$
Q425 Allen MICROBODIES, CYTOSKELETON AND CENTROSOMES CENTRIOLE MCQ
Which of the following termed as highly specialised peroxisomes?
A.
Glyoxysomes
B.
Mitochondria
C.
Golgi body
D.
Lysosomes