MCAT Biochemistry Question 34: Answer and Explanation

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Test Information

Question: 34

4. Which of the following proteins is most likely to be found extracellularly?

  • A. Tubulin
  • B. Myosin
  • C. Collagen
  • D. Actin

Correct Answer: C

Explanation:

The most prevalent extracellular proteins are keratin, elastin, and collagen. Tubulin and actin are the primary cytoskeletal proteins, while myosin is a motor protein.

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