Question

Microfilaments in eukaryotic cells are made up of

• A. actin
• B. albumin
• C. globulin
• D. fibrin

Answer 1

Answer: (A)

actin

Answer 2

Microfilaments are fibrillar structures, found in eukaryotes. These are $50-70\,A$ in diameter and are found in clusters beneath the cell membrane. $A$ microfilament is a single strand of identical globular proteins, which are very similar to, or may be identical with, actin of muscles.