M. Sc. (Biotechnology) (Semester (CBCS) Examination, 2017
CELL BIOLOGY
Day Date: Wednesday, 19-04-2017 Max. Marks: 70
Time: 10.30 AM to 01.00 PM
N.B. All questions of Section I are compulsory.
Answer any Four questions from section II.
All question carry equal marks.
Draw neat and labeled diagrams wherever necessary.
Section-I
Q.1 Rewrite the sentence after choosing the correct from the
given
07
is restricted to inner mitochondrial membrance.
Sphingomyelin Sphingolipids
PhosphotidyIserine Cardiolipin
In prokaryotic cell is absent.
Chromatin with histone Cell wall
Plasma membrance Plasmid
Cellular organelles contain hydrolytic enzymes are called as

Mesosomes Peroxisomes
Lysosomes Ribosomes
Microfilament is mainly composed by protein.
Myosin Actin Tubulin Keratin
Clathrin-coated pits are used to
Bring desired substances from the environment into the
cell in vesicles
Extrude bulk fluids form the cell
Allow desired molecules directly into the cytoplasm
Pass wastes in vesicles to the outside
In the cAMP pathway, the G protein stimulates
Phospholipase C The endoplasmic reticulum
Calmodulin Adenylyl cyclase
In most cases protein kinases
Bind cGMP
Hydrolyze proteins
Add phosphate groups to proteins
Polymerize amino acids
Page 1 of 2
SLR-RD 115
Define the terms 07
Cytoskeleton
Tight Junction
Prokaryotic cell
Membrane diffusion
Motor proteins
Extracellular matrix
Apoptosis
Section-II
Answer any four the following
Q.2 Explain structure of G-protein- Coupled receptors and their signal
transduction pathway.
14
Q.3 Explain chemical composition and Structure of plasma Membrane. 14
Q4 Describe Structural and function capitalization of Cell
organelles-mitochondria
14
Q5 Answer any two from the following 14
Add a note on 'communicative junction between cells'.
Write a note on 'Micro tubular Motor protein'.
Describe 'Intermediary filaments'.
Q.6 Write short notes on (any two) 14
Add a note on 'Calcium binding Protein'.
Explain Inter grins family protein.
Explain Golgi complex and its function.