Which of the following does NOT occur during skeletal muscle contraction?
Correct answer: B. Calcium binds to myosin heads
- A. ATP is hydrolyzed
- B. Calcium binds to myosin heads
- C. Both A and B
- D. None of these
Explanation
Calcium binds to troponin to remove tropomyosin from the binding site. It doesn't attach directly with "myosin".
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About Support and Movement
Support and movement covers the axial and appendicular skeleton, bone structure, joints and the arrangement of skeletal muscles. Muscle contraction is explained through actin, myosin, sliding filaments, calcium ions and ATP, while arthritis is distinguished as a disorder of joints rather than a normal part of movement.
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