Which of the following statements about actin filaments is incorrect?

Practice question

Question

Which of the following statements about actin filaments is incorrect?

Options

Choose one · Correct answer highlighted

Actin filaments are composed of 'F' actin polymers. Troponin is distributed at regular intervals on actin filaments. Myosin binds directly to tropomyosin during contraction. Correct Actin filaments are thinner compared to myosin filaments.

Explanation

Myosin does not bind directly to tropomyosin; it binds to actin filaments after troponin removes the masking effect.

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