Question

question 1 which of the following can assemble into cytoskeletal fib tubulin actin dynein question 2 a motor protein: uses atp to move uses passive diffusion to move question 3 an organelle being transported along a microtubule toward the plasm

Explanation:

• Question 1: Actin and dynein can be part of cytoskeletal - related structures. Actin assembles into microfilaments, a component of the cytoskeleton. Dynein is a motor protein associated with microtubules which are also part of the cytoskeleton. Tubulin is the building - block of microtubules but the question asks about assembly into cytoskeletal fibers in a more general sense where actin and dynein are correct.
• Question 2: Motor proteins use ATP for energy to move along cytoskeletal elements such as microtubules or microfilaments. They do not use passive diffusion for movement as passive diffusion is a non - energy - requiring process for the movement of small molecules, not for the movement of large protein complexes like motor proteins.

Answer:

• Question 1: B. actin, C. dynein
• Question 2: A. uses ATP to move