Tubulin is to Microtubules as Actin is To

Question

Tubulin is to microtubules as actin is to
A) ribosomes.
B) microfilaments.
C) intermediate filaments.
D) flagella.
E) microvilli.

Accepted Answer

Actin filaments are also known as microfilaments and play a role in cellular movement and structural support, similar to how tubulin plays a role in the formation of microtubules. Ribosomes are not related to actin. Intermediate filaments are a separate class of cytoskeletal filaments. Flagella and microvilli are structures that arise from microtubules and microfilaments, respectively, but do not represent the filaments themselves.