Cell Biology MCQ Questions & Answers

51

Which of the following are energy transducing membranes?
P. Plasma membrane of bacteria
Q. Inner membrane of chloroplasts
R. Inner membrane of mitochondria

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

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

52

Which of the following statements are correct about eukaryotic cell cycle?
P. CDKs can phosphorylate proteins in the absence of cyclins.
Q. CDKs can be inactivated by phosphorylation.
R. Degradation of cyclins is required for cell cycle progression.
S. CDKs are not involved in chromosome condensation.

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

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

53

Lysosomes contain

A) Lytic enzymes B) Carbohydrates C) Lipids D) Nucleic acids

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

54

Murein is a

A) Polypeptide B) Peptidoglycan C) Polysaccharide D) Lipid

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

55

Centromere duplication begins as the cell

A) Enters the S-phase B) Enters the G₁-phase C) Is half-way in S-phase D) Is half-way in G₁-phase

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

56

The proton-sugar transporter in bacteria is

A) Uniport B) Symport C) Antiport D) Diport

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

57

The lipopolysaccharides present in bacterial cell wall has lipid A which is connected to

A) O-polysaccharide B) Core polysaccharide C) Both with O-polysaccharide and core polysaccharide D) Rhamnose-mannose disaccharide

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

58

When thymidine synthesis is inhibited, eukaryotic cells will be arrested at

A) End of S phase B) End of M phase C) G₁/S interphase D) G₂/M interphase

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

59

Human olfactory receptors are

A) Ionotropic receptors B) G-protein coupled receptors C) Thermoreceptors D) Fc receptors

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

60

Match sub-cellular organelles listed in Group I with their features listed in Group II.

Group I	Group II
P. Mitochondrion	1. Single membrane enclosed
Q. Chloroplast	2. Double-membrane enclosed
R. Nucleus	3. Maternal inheritance
S. Endoplasmic reticulum	4. Endosymbiotic origin

A) P-1, Q-4, R-2, S-3 B) P-2, Q-3, R-4, S-1 C) P-3, Q-4, R-2, S-1 D) P-3, Q-1, R-4, S-2

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Cell Biology MCQ Questions &amp; Answers | Biotechnology

Cell Biology MCQ Questions & Answers | Biotechnology