Cellular Membranes(Cell Biology ) Questions and answers for exam Preparation

Question 1. The parts in the figure are a)__________, b)_____________, c)___________, d)____________.

dendrites, soma, myelin sheath, nodes of ranvier
dendrites, soma, cell body, axon hillock, myelin sheath
soma, axon hillock, myelin sheath, dendrites
soma, axon hillock, axon, dendrites

Explanation:-

Answer: Option A. -> dendrites, soma, myelin sheath, nodes of ranvier
Answer: (a).dendrites, soma, myelin sheath, nodes of ranvier

Question 2. Which type of molecules are involved in responding to external signals received by the cell?

Enzymes
Nucleic acids
Genes
Receptors

Explanation:-

Answer: Option D. -> Receptors
Answer: (d).Receptors

Question 3. Which of the following is allowed in context with a plasma membrane?

Inversion
Transportation
Transversion
Transformation

Explanation:-

Answer: Option B. -> Transportation
Answer: (b).Transportation

Question 4. Cytosol is the same as cytoplasm.

True
False
May be True or False
Can't say

Explanation:-

Answer: Option B. -> False
Answer: (b).False

Question 5. One of the main functions of plasma membranes is to enclose the contents of _____________

cell
organism
bones
tissue

Explanation:-

Answer: Option A. -> cell
Answer: (a).cell

Question 6. The channel in a membrane protein by which an ion or molecule can be transported in and out of the cell membrane is known as ___________

Permeation pathway
Permeate channel
Permeation channel
Channel pathway

Explanation:-

Answer: Option A. -> Permeation pathway
Answer: (a).Permeation pathway

Question 7. GPI- anchored proteins show particular affinity towards ________

Cholesterol
Hydrophobic tail
Lipid rafts
Phosphatidylserine

Explanation:-

Answer: Option C. -> Lipid rafts
Answer: (c).Lipid rafts

Question 8. Antibody -coated gold particles are used in _______________

FRAP
SPT
X-ray crystallography
Cannot be determined

Explanation:-

Answer: Option B. -> SPT
Answer: (b).SPT

Question 9. Greater degree of unsaturation in fatty acids of cell membrane _________

Lowers the transition temperature
Raises the transition temperature
Has no effect on transition temperature
Doubles the transition temperature

Explanation:-

Answer: Option A. -> Lowers the transition temperature
Answer: (a).Lowers the transition temperature

Question 10. FRAP is a technique to detect ___________

Membrane proteins
Transporting ions
Cholesterol patches
Cannot be determined

Explanation:-

Answer: Option A. -> Membrane proteins
Answer: (a).Membrane proteins