Which of the following statements about muscle contraction is incorrect?

Practice question

Question

Which of the following statements about muscle contraction is incorrect?

Options

Choose one · Correct answer highlighted

Actin filaments slide over myosin filaments. Myosin heads contain ATPase activity. ATP is not required for cross-bridge formation. Correct Calcium ions play a role in contraction.

Explanation

ATP is required for cross-bridge formation and subsequent muscle contractionâ€‹. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

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