Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Consider the following statements with respect to mechanism of skeletal muscle contraction.
Text Solution
Verified by ExpertsThe correct answer is:
A
• During maximal skeletal muscle contraction, the H-zone disappears.
• Z-lines move toward the center of the sarcomere.
• ATP is hydrolysed to cock the myosin head, enabling cross-bridge formation with actin.
• 
binds to troponin (specifically troponin C), not a subunit of tropomyosin; this shifts tropomyosin and exposes actin's active sites.
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