Cytology MCQ 03: MCQ On Plasma Membrane Part 2
Cytology MCQ 03: MCQ On Plasma Membrane Part 2
Cytology MCQ 03: MCQ On Plasma Membrane Part 2
Cytology MCQ‐03
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(Biology / Life Sciences MCQ: Multiple Choice Questions in Cytology/Cell Biology)
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(Sample/Model/Practice Questions for CSIR JRF/NET Life Science Examination, ICMR JRF Exam, DBT BET JRF Exam,, GATE
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1. The cleavage of spectrin network in the cell by the proteolytic enzyme calpane
indicate:
A. Apoptosis
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B. Necrosis
C. Cellular inflammation
D. Phagocytosis
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2. At physiological conditions, cholesterol in the plasma membrane:
A. Increase the durability of plasma membrane
B. Increase the permeability of plasma membrane
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C. Decrease the durability of plasma membrane
D. Decrease the permeability of plasma membrane
A. A, B
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B. A, C
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C. A, D
D. B, D
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plasma membrane?
A. Flexion
B. Rotation
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C. Lateral diffusion
D. Flip‐flop
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D. Anchoring Fo particle of ATP synthase in the plasma membrane
6. An important domain of ankyrin protein which binds to apoptosis inducing proteins
of the cells is:
A. N‐terminal domain
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B. Central domain
C. Death domain
D. C‐terminal
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7. Which of the following is a cytoskeletal protein
A. Glycophorin A
B. Glycophorin B
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C. Spectrin
D. Band 3 protein
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8. The most abundant phospholipid component in the bacterial cell membrane is
A. Phosphatidylethanolamine
B. Phosphatidylserine
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C. Phosphatidylcholine
D. Cholesterol
9. The main function of band 3 proteins in the plasma membrane of RBC is
A. Exchange of chloride ion (Cl‐) with bicarbonate ions
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B. Exchange of K+ ions with Na+ ions
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10. The length of fatty acyl chain in the fatty acids of membrane lipids usually range
from
A. 10 – 15 carbons
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B. 18 – 20 carbons
C. 24 – 30 carbons
D. 28 – 30 carbons
11. Ankyrin proteins have binding site for the _______ subunit of spectrin proteins
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A. Alpha
B. Beta
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permeability?
A. Phospholipid bilayer
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B. Trans‐membrane proteins
C. Glycolipids on the outer surface of the membrane
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D. Peripheral membrane proteins on the inside of the membrane
13. Water can pass the plasma membrane:
A. by simple diffusion only
B. Through aquaporins channel only
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C. By simple diffusion and through aquaporins
D. Water cannot cross plasma membrane
14. The genetic disorder hemolytic anemia is caused by
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A. Mutation in spectrin and ankyrin genes
B. Mutation in band 3 protein of RBC
C. Mutation in Glycophorin A protein of RBC
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D. Mutation in Glycophorin B protein of RBC
15. If the temperature of culture of bacterial is lowered, the cell responds metabolically
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to maintain the fluidity of membrane. This will be achieved by:
A. Introducing more double bonds in the fatty acyl chain of fatty acids
B. Reshuffling the chain between different phospholipid molecule to produce
lipids with two unsaturated fatty acids
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C. Removing double bonds from fatty acids to increase the saturation of fatty
acids
D. Reshuffling the chain between different phospholipids molecules to produce
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lipids with saturated fatty acids
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A. A, B
B. A, C, D
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C. A, D
D. C, D
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