Microfilaments and microtubules are cytoskeletal elements that also function in
ID: 810244 • Letter: M
Question
Microfilaments and microtubules are cytoskeletal elements that also function in the cell shape and cell movements. Determine whether each of the following statements describes microfilaments, microtubules or both?
a. Dimers polymerize into protofilametns that then associate side by side
b. monomers bind GTP
c. 13 Protofilaments associate to form a hollow tube
d. Monomers bind ATP
e. Polymer of globular subunits
f. Subunit add more quickly to the + end than to the - end
g. fibers polymerize and depolymerize quickly
h. structure is a double chain of subunits
Explanation / Answer
a. Dimers polymerize into protofilametns that then associate side by side