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Title: When a skeletal muscle cell contracts and the muscle shortens, Post by: colleen on Oct 24, 2013 When a skeletal muscle cell contracts and the muscle shortens,
A) myosin heads generate a single power stroke. B) the position of an actin molecule relative to a myosin molecule does not change. C) some myosin heads are forming crossbridges as others are releasing them. D) the actin ATPase allows the actin molecule to swivel. E) the actin molecule swivels during the power stroke. Title: Re: When a skeletal muscle cell contracts and the muscle shortens, Post by: padre on Oct 26, 2013 Content hidden
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