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Minutes: First Biotechnology Examination, Cell

This document appears to be an exam for a Cell Biology course, given the course number MS-103 and the section titles. It contains instructions for the exam and lists questions in Section B and Section C. Section B asks short answer questions about topics like peroxisomes, chromosomes, actin filaments, microtubules, cyclic AMP, Ras signaling, and the endoplasmic reticulum. Section C asks longer answer questions about topics such as ion channels, the cell cycle, cell cycle regulation, model systems to study the cell cycle, G-protein coupled receptor signaling, nuclear transport, mitochondrial protein translocation, apoptosis pathways, and resting membrane potential and action potential generation.

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Ashish Bharadwaj
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174 views2 pages

Minutes: First Biotechnology Examination, Cell

This document appears to be an exam for a Cell Biology course, given the course number MS-103 and the section titles. It contains instructions for the exam and lists questions in Section B and Section C. Section B asks short answer questions about topics like peroxisomes, chromosomes, actin filaments, microtubules, cyclic AMP, Ras signaling, and the endoplasmic reticulum. Section C asks longer answer questions about topics such as ion channels, the cell cycle, cell cycle regulation, model systems to study the cell cycle, G-protein coupled receptor signaling, nuclear transport, mitochondrial protein translocation, apoptosis pathways, and resting membrane potential and action potential generation.

Uploaded by

Ashish Bharadwaj
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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r llllllfirfi lil lllll llll llll MS 03

First Year M.Sc. Biotechnology (semester - l)


Examination, December 2O1 4
CELL BIOLOGY
(Course No. MS - 103)

Date:22-12-2A14
Total Duration:Section A+ B+C=2 Hours 30 Minutes Section B &C Marks:45

SECTION_B&SECTION_C

Time Allowed : 2 Hours 15 Minutes

lnstructions: 1) Use separate answer books for Section B and Section C'
2) Draw neat ai.nd labelled diagramswherever necessary.
3) Figures on therightindicate marks'

SECTION * B

2. write short answers to the following (any flve) : (5x3=15)

a) Write a note on Peroxisomes'

b) Write a short note on chromosomes

c) compare and contrast actin tilaments and microtubules'

d) Write a short note on cYclic AMP'

e) Briefty explain how Ras acts as a signallinE molecule.

f) Write a note on endoplasmic reticulum'

g) Write a short note on cadherins'

P.T.O.
MS 03 ilillillililllllllllllilllllll

3. Answer the following (any two) : (2x5=10)

a) Briefly describe lon channels.


b) Briefly describe the
i) tnterphase of cell cycle
ii) Checkpoints involved in cell cycle regulation
iii) Eukaryotic nrodel systems used to stttdy cell cycle
c) Describe signalling mediated through G-protein coupled receptors.

SECTION - C

4. Answer the following questions (any two) : (2x10=20)

a) Briefly explain :
i) Nuclear transport of proteins and
ii) Translocation of proteins into mitochondria
b) What is apoptosis ? Explain the extrinsic and intrinsic pathway involving
apoptosis.

c) Give an account on resting membrane potential and deseribe how action potential
is generated.

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