Cytoskeleton Components

Question 1

Cytoskeleton

Answer 1

Network of fibers in cells

Question 2

What are microfilaments composed of?

Answer 2

2 strands of actin polymers (double stranded)

Question 3

What are microfilaments involved in?

Answer 3

cell movement

Question 4

What role do microfilaments play in replication?

Answer 4

contribute to formation of cleavage furrow

Question 5

Which cytoskeleton component interacts with myosin to initiate muscle contractions?

Answer 5

microfilaments

Question 6

What are microtubules composed of?

Answer 6

alpha and beta- tubulin dimers

Question 7

What are microtubules involved in?

Answer 7

maintain structural integrity, act as protein highways for kinesin and dyesin

Question 8

What role do microtubules play in replication?

Answer 8

form mitotic spindles to pull apart chromosomes at the centromere

Question 9

Which cytoskeleton components have polarity?

Answer 9

microtubules, grow at + end, shrink at - end

Question 10

What are intermediate filaments involved in?

Answer 10

provide structural support, cell to cell adhesion processes