Cytoskeleton And Cell Motility(Cell Biology ) Questions and answers for exam Preparation

Question 1. How many filamentous structures together comprise the cytoskeleton?

1
2
3
4

Explanation:-

Answer: Option C. -> 3
Answer: (c).3

Question 2. Microtubules are formed of the protein ____________

clathrin
keratin
tubulin
actin

Explanation:-

Answer: Option C. -> tubulin
Answer: (c).tubulin

Question 3. Cytoskeletal filaments are polymers of ________________

proteins
ribonucleic acids
deoxyribonucleic acids
carbohydrates

Explanation:-

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

Question 4. Microfilaments are composed of the protein ____________

actin
myosin
tubulin
niacin

Explanation:-

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

Question 5. Microtubules of a dividing cell form the mitotic spindle.

True
False
May be True or False
Can't say

Explanation:-

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

Question 6. The type V intermediate filaments are called ___________

lamins
collagen
lignin
fibrin

Explanation:-

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

Question 7. Plectins are _____________

filaments
proteins
peripheral organelles
fibres

Explanation:-

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

Question 8. Unlike other cytoskeletal elements, in the assembly of intermediate filaments there is no requirement of ______________

ATP/ GDP
Nucleation
Reduction
Hydrolysis

Explanation:-

Answer: Option A. -> ATP/ GDP
Answer: (a).ATP/ GDP

Question 9. Intermediate filaments lack polarity.

True
False
May be True or False
Can't say

Explanation:-

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

Question 10. Intermediate filaments tend to be less sensitive to __________________

chemicals
plectins
acidification
condensation

Explanation:-

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