M.Sc. (Semester (CBCS) Examination Nov/Dec-2018
Zoology
CELL AND MOLECULAR BIOLOGY
Time: 2½ Hours Max. Marks: 70
Instructions: Question number 2 and 6 are compulsory.
Attempt any two question no.3, 4 and 5.
Q.1 Choose the correct alternatives and rewrite the sentence:- marks each) 14
Which of the following lipids is commonly found in biological membranes?
Monoglycerides Diglycerides
Triglycerides All of the above
Diffusion across the plasma membrane is more rapid if a substance is

A protein Hydrophilic
High in its oil water partition Large and globular in shape
Marker enzyme in golgi apparatus is
acetyl CoA synthetase pyruvate kinase
cytochrome oxidase galactosyl transferase
Function of microtubules in axon is
Synthesis of neurotransmitter To conduct electric impulse
Direct axoplasmic transport Cross link with myosin
Which of the following is not a property of cancer cell?
Lack of density dependent inhibition of cell proliferation
Fail to undergo apoptosis
Loss of contact inhibition of movement
Increased requirement of extracellular growth factor
The kinesin are the motor molecules that are related to the
Intermediate filament Microfilament
Microtubules Myosin filament
In facilitated diffusion the glucose transporter is a carrier.
Uniport Symport
Antiport Multiport
Which of the following drug may prevent polymerization of microtubules at
the minus end?
Cytochalasin Phaloidin
Taxol Colchicine
Cell theory was proposed by
Beadle and Tatum Robert Hooke
Schleiden and Schwann Leeuwenhoek
10) The cell theory is not applicable to
Bacteria Virus
Algae Fungi
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SLR-VS-503
11) The membrane around the vacuole is called
Cytoplast Tonoplast
Amyloplast Elaioplast
12) Facilitated diffusion:
Requires a transmembrane protein
Can move molecules against a concentration gradient
Is typically used to transport small nonpolar molecules
All of these
13) The diameter of most animal and plant cells ranges from
1.0 to 10 microns 0.01 to 0.1 microns
10 to 100 microns 100 to 1000 microns
14) Experiments demonstrating the importance of the nucleus in controlling the
growth of the cell were performed in
Starfish Acetabularia
Leucocytes Neurospora
Q.2 Answer the following:- (Any Four) 08
Give any four functions of Golgi apparatus.
What is antiport?
What are proto oncogenes?
Explain plasmodesmata.
Define cytoskeleton.
Write notes on (Any two) 06
Polymorphism in lysosomes
Biology of cancer
Collagens
Q.3 Answer the following:- (Any two) 08
Describe Synapses.
Draw a neat labelled diagram of Ultra structure of Golgi bodies.
Describe membrane proteins in E.R.
Answer the following:- (Any one) 06
Transport across epithelia
Actin binding proteins.
Q.4 Answer the following:- (Any two) 10
Microtubule structure and dynamics
Give the functions of Mitochondria
Describe cell junctions.
Answer the following:- (Any one) 04
Tyrosin kinase receptor
Nuclear Pore complex
Q.5 Answer the following:- (Any two) 14
What is cancer? Add a note on cancer cell morphology.
What is cell trafficking? Give an account on post transcriptional modification
and protein sorting in Golgi apparatus.
Describe Fluid mosaic model of plasma membrane.