Consider the mechanism by which actin and tubulin polymerize. Which of the items below does not describe something similar about the polymerization mechanisms of actin and microtubules? Select one: a. Free subunits (actin and tubulin) carry nucleoside triphosphates. b. Although both filaments can grow from both ends, the growth rate is faster at the plus ends. c. Depolymerization initiates at the plus ends of filaments. d. Nucleotide hydrolysis promotes depolymerization of filaments.
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Step 1: Free subunits of actin and tubulin carry nucleoside triphosphates. Show more…
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(53) Which of the items below does NOT describe something similar about the polymerization mechanisms of actin and microtubules? Although both filaments can grow from both ends, the growth rate is faster ends the plus Depolymerization initiates at the plus ends of filaments. Nucleotide hydrolysis promotes depolymerization of filaments. Free subunits (actin and tubulin) carry nucleoside triphosphates.
Shaiju T.
Match the protein to the correct description: Tubulin Kinesin Dynein Myosin G-actin F-actin [Choose] Actin monomer Actin polymer + end directed motor protein that associates with microtubules Polymerize to form microtubules - end directed motor protein that associates with microtubules Motor protein that associates with actin
Sri K.
The role of ATP hydrolysis in actin polymerization is similar to the role of GTP hydrolysis in tubulin polymerization: both serve to weaken the bonds in the polymer and thereby promote depolymerization.
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