Question

Indicate true (T) and false (F) statements below regarding cytoskeletal motor proteins. Your answer would be a five-letter string composed of letters T and F only, e.g. TTTFF.

(A) All myosin motors move toward the plus end of actin filaments.
(B) All myosin motors move toward the minus end of actin filaments.
(C) All kinesin motors move toward the plus end of microtubules.
(D) All kinesin motors move toward the minus end of microtubules.
(E) All dynein motors move toward the minus end of microtubules.

Answer 1

The correct evaluation of the statements regarding cytoskeletal motor proteins is True, False, True, False, True (TTFFT), with myosin moving toward the plus end of actin filaments, most kinesin moving toward the plus end and dynein moving toward the minus end of microtubules.

Step-by-step explanation:

Regarding cytoskeletal motor proteins and the directional movement they facilitate along cytoskeletal filaments, here is the evaluation of the statements:

• (A) All myosin motors move toward the plus end of actin filaments. - True (T)
• (B) All myosin motors move toward the minus end of actin filaments. - False (F)
• (C) All kinesin motors move toward the plus end of microtubules. - True (T), though it's worth noting that some kinesin family members can move toward the minus end.
• (D) All kinesin motors move toward the minus end of microtubules. - False (F)
• (E) All dynein motors move toward the minus end of microtubules. - True (T)

The five-letter string composed of letters T and F to indicate true and false statements is TTFFT.