Cell Biology MCQ Questions & Answers

1

Which one of the following changes occurs in a directionally migrating eukaryotic cell?

A) The ER is fragmented B) The mitochondrial membrane potential drops C) The nucleus moves towards the back and behind the Golgi D) The Golgi is fragmented

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Answer & Solution

Answer: Option C

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2

Structured William's model
P. Can describe the changes in intracellular components of the cell during growth.
Q. Cannot describe the death phase of the cells.
R. Can describe the variation of size of cells in the different phases of growth.
S. Cannot describe the lag period of growth.
Which one of the following is correct?

A) P, Q and S only B) P, Q and R only C) Q, R and S only D) P, R and S only

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Answer & Solution

Answer: Option D

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3

Metaplasia represents

A) Uncontrolled proliferation of cells initiated at the metaphase of cell cycle B) Transformation of one differentiated cell type to another C) Cell proliferation during metamorphosis D) A measure of metabolic activity in hyperplastic cells

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Answer & Solution

Answer: Option B

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4

Which one of the following organelles disappears during cell division and is regenerated in the daughter cells?

A) Endoplasmic reticulum B) Golgi C) Mitochondria D) Peroxisomes

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Answer & Solution

Answer: Option B

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5

The process by which intracellular macromolecules are supplied for lysosomal degradation during nutrient starvation is

A) Apoptosis B) Autophagy C) Phagocytosis D) Pinocytosis

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Answer & Solution

Answer: Option B

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6

The type of transport that does not reach V_max, is

A) Simple diffusion across lipid bilayer B) Facilitated diffusion via uniporters C) Movement of ions through ion channels D) Primary active transport via ATP powered pumps

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Answer & Solution

Answer: Option A

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7

Neurotransmitter at the neuromuscular junction is

A) Epinephrine B) Serotonin C) Acetylcholine D) Dopamine

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Answer & Solution

Answer: Option C

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8

Which of the following statements about Na+ - K+ ATPase is correct?

A) It is responsible for generating the resting membrane potential B) It transports Na+ and K+ ions down their respective gradients C) It is responsible for generating an action potential D) It indirectly regulates the volume of the cell

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Answer & Solution

Answer: Option D

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9

Ras protein is a

A) Trimeric GTPase involved in relaying signal from cell surface to nucleus B) Monomeric GTPase involved in relaying signal from cell surface to nucleus C) Trimeric GTPase involved in regulation of cytoskeleton D) Monomeric GTPase involved in regulation of cytoskeleton

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Answer & Solution

Answer: Option B

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10

How many mitotic divisions shall occur to produce 64 cells from 2 cells

A) 5 B) 62 C) 32 D) 63

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Answer & Solution

Answer: Option A

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Cell Biology MCQ Questions &amp; Answers | Biotechnology

Cell Biology MCQ Questions & Answers | Biotechnology