Cell_ The Unit Of Life

597 Questions Start Allen Test
BHU 1994, 2008; MP PMT 1997; AIIMS 1999; Kerala PMT 2006, 07 Q301 Errorless Cell wall MCQ
'Peptidoglycan' is a characteristic constituent of the cell wall of
A.
Eubacteria and unicellular eukaryotes
B.
Bacteria and cyanobacteria
C.
Archaebacteria and eukaryotes
D.
All members of ā€˜Monera’ and ā€˜Protista’
Pb. PMT 1994; MP PMT 1995, 98; CBSE PMT 1996; AIEEE Pharmacy 2003 Q302 Errorless Cell wall MCQ
Circular DNA molecule occurs in
A.
Viruses
B.
Bacteria, chloroplasts and mitochondria
C.
Bacteria and chloroplasts only
D.
Bacteria only
MP PMT 1994 Q303 Errorless Plasma Membrane MCQ
According to the 'Unit membrane model' the thickness of the cell membrane is about
A.
200 nm
B.
7.5 nm
C.
150 nm
D.
1.0 nm
BHU 1994; WB JEE 2008 Q304 Errorless Plasma Membrane MCQ
Which of the following does not require carrier molecules during transport through cell membranes
A.
Simple diffusion
B.
Facilitated diffusion
C.
Na+ - K+ transport
D.
Active transport of sugars and amino acids
CPMT 1994; MP PMT 1999, 2000; MHCET 2001; Pb. PMT 2004; J & K CET 2005 Q305 Errorless Protoplasm and Cytoplasm MCQ
The name 'protoplasm' was given by
A.
Purkinje
B.
Hooke
C.
A.K. Sharma
D.
Schwann
1994 Q306 Errorless Protoplasm and Cytoplasm MCQ
Cyclosis is [KCET 1994: RPM
A.
Circular movement of cytoplasm inside the cell
B.
Up and down movement of protoplasm
C.
To and fro movement of nucleoplasm
D.
None of the above
KCET 1994, 2004; Bihar MDAT 1995; CPMT 2001, 02; MP PMT 2003, 04; RPMT 2005; AFMC 2009 Q307 Errorless Mitochondria MCQ
Organelles which are regarded as 'Power house' of the cell and in which the oxidative reactions of the respiratory process takes place are Or Which of the following cell organells is responsible for extracting energy from Carbohydrates to form ATP [NEET 2017]
A.
Chloroplast
B.
Ribosomes
C.
Endoplasmic reticulum
D.
Mitochondria
MP PMT 1994, 2011 Q308 Errorless Mitochondria MCQ
Mitochondria are non-existent in
A.
Red algae
B.
Some bacteria
C.
Green algae
D.
Brown algae
MP PMT 1994 Q309 Errorless Mitochondria MCQ
Mitochondria supply most of the necessary biological energy by
A.
Breaking down of sugar
B.
Oxidizing substrates of TCA cycle
C.
Reducing NADP
D.
Breaking down of protein
CPMT 1994 Q310 Errorless Plastids MCQ
Chromoplast may be of
A.
Orange colour
B.
Red colour
C.
Yellow colour
D.
All the above
CPMT 1994; AFMC 2012 Q311 Errorless Plastids MCQ
Extranuclear DNA in the cytoplasm is found inside [NCERT Pg. No. 97, 98]
A.
Chloroplast/Mitochondria
B.
Ribosome
C.
Endoplasmic reticulum
D.
Golgi apparatus
CBSE PMT 1994 Q312 Errorless Plastids MCQ
All plastids have essentially same structure because
A.
They have to perform same function
B.
They are localized in aerial parts of plant
C.
All plastids store starch, lipid and proteins 1⁻1
D.
One type of plastids can be differentiated into another type of plastid depending on cell requirements
MP PMT 1994 Q313 Errorless Endoplasmic reticulum and Golgi body MCQ
In rapidly dividing cells, endoplasmic reticulum is
A.
Highly developed
B.
Poorly developed
C.
Absent
D.
Non-functional
MP PMT 1994; J & K CET 2005 Q314 Errorless Endoplasmic reticulum and Golgi body MCQ
The endoplasmic reticulum often bears [NCERT Pg. No. 95]
A.
Lysosomes
B.
Centrioles
C.
Peroxisomes
D.
Ribosomes
MP PMT 1994; CBSE PMT 1999 Q315 Errorless Lysosome and Ribosomes MCQ
The functional unit in the synthesis of protein is
A.
Peroxisome
B.
Dictyosome
C.
Lysosome
D.
Polysome
MP PMT 1994, 99; MHCET 2001; J & K CET 2002; Kerala PMT 2004; Odisha JEE 2010; KCET 2011 Q316 Errorless Lysosome and Ribosomes MCQ
Ribosomes of bacteria, mitochondria, prokaryotes (Nostoc) and chloroplast are of
A.
50 S type
B.
80 S type
C.
70 S type
D.
30 S type
CPMT 1994; MP PMT 1995, 2003; MDAT Bihar 1995; KCET 1999; CBSE PMT 1999; BVP 2001; BHU 2004; J & K CET 2005, 12; RPMT 2006 Q317 Errorless Lysosome and Ribosomes MCQ
The site of protein synthesis in plants is the
A.
Chloroplast
B.
Ribosomes
C.
Pyrenoids
D.
Mitochondria
MP PMT 1994, 2002; RPMT 2001; J & K CET 2002; DPMT 2003 Q318 Errorless Centrosomes/Centriole Cilia, Flagella and Microtubules MCQ
A plant cell usually differs from an animal cell in the absence of Or Plant cells normally lack [AMU (Med.) 2012] Or Which of the following organelles is devoid of DNA yet is capable of duplication [MP PMT 2013]
A.
Ribosomes
B.
Centriole
C.
Mitochondria
D.
E.R.
MP PMT 1994, 97; CPMT 2001; AIEEE (Pharmacy) 2009; CBSE PMT (Pre.) 2012 Q319 Errorless Nucleus and Chromosomes MCQ
The function of nucleolus is the synthesis of
A.
DNA
B.
m-RNA
C.
r-RNA
D.
t-RNA
MP PMT 1994 Q320 Errorless Nucleus and Chromosomes MCQ
Nuclear material without nuclear membrane is observed in
A.
Bacteria and green algae
B.
Cyanobacteria and red algae
C.
Bacteria and cyanobacteria
D.
Mycoplasmas and green algae
MP PMT 1994 Q321 Errorless Nucleus and Chromosomes MCQ
The nucleoplasm is continuous with the cytoplasm of a cell through
A.
Centriole
B.
Endoplasmic reticulum
C.
Nuclear pores
D.
Golgi apparatus
MP PMT 1994 Q322 Errorless Critical Thinking MCQ
Which of the following has centrioles
A.
Chromosomes
B.
Spindle fibres
C.
Centrosomes
D.
Centromeres
AIIMS 1994 Q323 Errorless Assertion and Reason MCQ
Assertion: Schleiden and Schwann were the first to observe the cells and to put forward cell theory. Reason: The cells are always living unit.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
AIIMS 1994 Q324 Errorless Assertion and Reason MCQ
Assertion: Cell membrane is semipermeable. Reason: The constituent molecules of cell membrane freely move in the membrane.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
CMC Vellore 1993; BVP 2004; Kerala PMT 2004; Odisha JEE 2011; MP PMT 2011 Q325 Errorless Cell Introduction and Cell Theory MCQ
Which of the following is the exception of cell theory
A.
Bacteria
B.
Fungi
C.
Lichen
D.
Virus