2007
Q101
NEET
MCQ
10 Mar 2026
Which one of the following is not a constituent
of cell membrane ?
A.
Glycolipids
B.
Proline
C.
Phospholipids
D.
Cholesterol
2006
Q102
NEET
MCQ
10 Mar 2026
A major breakthrough in the studies of cells
came with the development of electron
microscope. This is because
A.
Electron beam can pass through thick
materials, whereas light microscopy requires
thin sections
B.
The resolution power of the electron
microscope is much higher than that of the
light microscope
C.
The electron microscope is more powerful
than the light microscope as it uses a beam
of electrons which has wavelength much
longer than that of photons
D.
The resolving power of the electron
microscope is 200-350 nm as compared to
0.1-0.2 nm for the light microscope
2006
Q103
NEET
MCQ
10 Mar 2026
Which of the following statements regarding
cilia is not correct ?
A.
Microtubules of cilia are composed of
tubulin
B.
The organized beating of cilia is controlled
by fluxes of Ca2+ across the membrane
C.
Cilia are hair-like cellular appendages
D.
Cilin contain an outer ring of nine doublet
microtubules surrounding two single
microtubules
2006
Q104
NEET
MCQ
10 Mar 2026
Which of the following statements regarding
mitochondrial membrane is not correct ?
A.
The inner membrane is highly convoluted
forming a series of infoldings
B.
The outer membrane resembles a sieve
C.
The outer membrane is permeable to all kinds
of molecules
D.
The enzymes of the electron transfer chain
are embedded in the outer membrane
2005
Q105
NEET
MCQ
10 Mar 2026
A student wishes to study the cell structure under
a light microscope having 10X eyepiece and 45X
objective. He should illuminate the object by
which one of the following colours of light so as
get the best possible resolution ?
A.
Yellow
B.
Red
C.
Blue
D.
Green
2005
Q106
NEET
MCQ
10 Mar 2026
Chlorophyll in chloroplasts is located in
A.
Stroma
B.
Grana
C.
Pyrenoid
D.
Both (A) and (C)
2005
Q107
NEET
MCQ
10 Mar 2026
Centromere is required for -
A.
Crossing over
B.
Movement of chromosomes towards poles
C.
Transcription
D.
Cytoplasmic cleavage
2005
Q108
NEET
MCQ
10 Mar 2026
The main organelle involved in modification and
routing of newly synthesized proteins to their
destinations is -
A.
Mitochondria
B.
Endoplasmic Reticulum
C.
Chloroplast
D.
Lysosome
2005
Q109
NEET
MCQ
10 Mar 2026
Chemiosmotic theory of ATP synthesis in the
chloroplasts and mitochondria is based on
A.
Proton gradient
B.
Membrane potential
C.
Accumulation of Na+ ions
D.
Accumulation of K+ ions
2005
Q110
NEET
MCQ
10 Mar 2026
According to widely accepted "fluid mosaic
model" cell membranes are semi-fluid, where
lipids and integral proteins can diffuse randomly.
In recent years, this model has been modified in
several respects. In this regard, which of the
following statements are incorrect ?
A.
Proteins in cell membranes can travel within
the lipid bilayer
B.
Proteins can also undergo flip-flop
movements in the lipid bilayer
C.
Proteins can remain confined within certain
domains of the membranes
D.
Many proteins remain completely embedded
within the lipid bilayer
2004
Q111
NEET
MCQ
10 Mar 2026
The telomeres of eukaryotic chromosomes
consist of short sequences of
A.
Adenine rich repeats
B.
Cytosine rich repeats
C.
Thymine rich repeats
D.
Guanine rich repeats
2004
Q112
NEET
MCQ
10 Mar 2026
In chloroplasts, chlorophyll is present in the :-
A.
Outer membrane
B.
Inner membrane
C.
Thylakoids
D.
Stroma
2003
Q113
NEET
MCQ
10 Mar 2026
Cellular totipotency is demonstrated by :-
A.
All eukaryotic cells
B.
Only gymnosperm cells
C.
Only bacterial cells
D.
All plant cells
2002
Q114
NEET
MCQ
10 Mar 2026
Ribosomes are produced in :
A.
Mitochondria
B.
Golgibody
C.
Nucleolus
D.
Cytoplasm
2002
Q115
NEET
MCQ
10 Mar 2026
In fluid mosaic model of plasma membrane
A.
Phospholipids form a bimolecular layer in
middle part
B.
Upper layer is non-polar and hydrophilic
C.
Proteins form a middle layer
D.
Polar layer is hydrophobic
2001
Q116
NEET
MCQ
10 Mar 2026
Microtubules are absent in : -
A.
Spindle fibres
B.
Mitochondria
C.
Centriole
D.
Flagella
2001
Q117
NEET
MCQ
10 Mar 2026
Element necessary for the middle lamella is
A.
K
B.
Cu
C.
Ca
D.
Zn
2001
Q118
NEET
MCQ
10 Mar 2026
Proteinaceous pigment which control the
activities concerned with light is
A.
Carotenoids
B.
Phytochrome
C.
Chlorophyll
D.
Anthocyanin
2000
Q119
NEET
MCQ
10 Mar 2026
Which cell organelle is concerned with
glycosylation of protein ?
A.
Endoplasmic reticulum
B.
Ribosome
C.
Mitochondria
D.
Peroxisome
2000
Q120
NEET
MCQ
10 Mar 2026
Lysosome contains :
A.
Reductive enzymes
B.
Oxidative enzymes
C.
Anabolic enzymes
D.
Hydrolytic enzymes
2000
Q121
NEET
MCQ
10 Mar 2026
Which of the following ribosomes are engaged
in protein synthesis in animal cell ?
A.
Ribosomes of only nucleolus and cytosol
B.
Ribosomes which occur on nuclear
membrane and E.R.
C.
Ribosomes of only mitochondria and
cytosol
D.
Ribosomes of only cytosol
2000
Q122
NEET
MCQ
10 Mar 2026
Function of telomeres in nucleus is
A.
To seal the ends of chromosome
B.
Poleward movement
C.
To recognize the homologous chromosome
D.
To initiate the RNA synthesis