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Exam Details

LIFE SCIENCE PART B (DECEMBER 2016) 2016

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Questions 50
Duration 180 mins
Package CSIR NET & SET - Previous Year Papers

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Medium 28 56%
Hard 20 40%
Easy 2 4%

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Multiple Choices 50 100%

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1
2016 · Unclassified
LIFE SCIENCE PART B (DECEMBER 2016) 2016
Choose the most appropriate pH at which the net charge is zero for the molecule from the data shown below:
A
2.02
B
2.91
C
6.87
D
5.98
2
2016 · Unclassified
LIFE SCIENCE PART B (DECEMBER 2016) 2016
Choose the correct statement about peptides in the Ramachandran plot.
A
Peptides that are unstructured will have all the backbone dihedral angles in the disallowed regions.
B
It is not possible to conclude whether a peptide adopts entirely helix or entirely beta sheet conformation.
C
The occurrence of beta turn conformation in a peptide can be deduced.
D
The sequence of a peptide can be deduced.
3
2016 · Unclassified
LIFE SCIENCE PART B (DECEMBER 2016) 2016
Equilibrium constant of a reaction is a ratio of product to substrate concentrations. The relation between and free energy change in a reaction (ΔG′) is as follows
ΔG′ = – RT ln Reaction A and Reaction B have values of 10 and 100, respectively. Which of the following statements is correct with respect to ΔG′?
A
ΔG′ of A = ΔG′ of B
B
ΔG′ of A > ΔG′ of B
C
D
ΔG′ of B > ΔG′ of A
4
2016 · Unclassified
LIFE SCIENCE PART B (DECEMBER 2016) 2016
Excess oxygen consumed after a vigorous exercise is
A
to pump out lactic acid from muscle.
B
to increase the concentration of lactic acid in muscle.
C
to reduce dissolved carbon dioxide in blood.
D
to make ATP for gluconeogenesis.
5
2016 · Unclassified
LIFE SCIENCE PART B (DECEMBER 2016) 2016
Which one of the following describes the primary function of flippases?
A
Help in increasing lipid-protein interaction in the outer leaflet of the bilayer
B
Move certain phospholipids from one leaflet of the membrane to another
C
Cause uncoupling of v-SNARES and
D
Localize more negatively charged membrane proteins in the lipid bilayer
6
2016 · Unclassified
LIFE SCIENCE PART B (DECEMBER 2016) 2016
Mitotic cyclin-CDK activity peaks in M phase. This is because
A
Mitotic cyclin is synthesised only in M phase.
B
Threshold level of mitotic cyclin accumulates only in late G2
C
Cyclin subunit is activated by phosphorylation only in M phase.
D
The kinase subunit is activated by dephosphorylation only in M phase.