Cell Biology and Organelles Practice Questions

Question 1

Which of the following statements regarding collagen synthesis is incorrect?

Accepted Answer

Hydroxylation of proline occurs in Golgi apparatus

Answer

Hydroxylation of lysine occurs in ER

Answer

Synthesized in ribosomes as preprocollagen

Answer

Triple helix assembly occurs in ER

Question 2

Which of the following helps in cell-to-cell adhesion?

Accepted Answer

E-Cadherin

Answer

Interleukins

Answer

Interferons

Answer

Matrix metalloproteinases

Question 3

What is the main component of a bilayer cell membrane?

Accepted Answer

Phospholipids

Answer

Cholesterol ester

Answer

Triacyl glycerol

Answer

Cholesterol

Question 4

Major mechanism of transport of drugs across biological membranes is:

Accepted Answer

Passive diffusion

Answer

Facilitated diffusion

Answer

Active transport

Answer

Endocytosis

Question 5

Identify the gene commonly involved in the condition shown in the image?

Accepted Answer

BRAF V600E

Answer

RAS

Answer

RET

Answer

P53

Question 6

Which of these is not a part of extracellular matrix:

Accepted Answer

Integrins

Answer

Collagen

Answer

Laminin

Answer

Fibronectin

Question 7

Most radio-resistant phase in the cell cycle:

Accepted Answer

Late S

Answer

G2

Answer

Early S

Answer

G1

Question 8

Which of the following statements regarding mitochondrial DNA is FALSE?

Accepted Answer

All respiratory proteins are synthesized within the mitochondria

Answer

Double stranded

Answer

Inherited from mother

Answer

High mutation rate

Question 9

All the following features are seen in neurons from dorsal root ganglia, EXCEPT:

Accepted Answer

They are multipolar

Answer

They are derived from neural crest cells

Answer

They have eccentrically located nuclei

Answer

They contain lipofuscin granules

Question 10

What is the cell lining of the common bile duct?

Accepted Answer

Simple columnar

Answer

Stratified columnar

Answer

Stratified squamous

Answer

Simple cuboidal

Cell Biology and Organelles — MCQs

Cell Biology and Organelles — MCQs

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