CanFitPro Personal Training Specialist Practice Test 2025 - Free Personal Training Specialist Practice Questions and Study Guide

Question: 1 / 445

What are myofibrils made of?

Bone tissue

Myosin and actin

Myofibrils are comprised of myosin and actin, which are contractile proteins involved in muscle contraction. Bone tissue, fat cells and cartilage do not contain the necessary proteins for muscle contraction so they are incorrect options.

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Fat cells

Cartilage

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