MUSCLE NERVE CARTILAGE BONE
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It combines ADP and Pi to form ATP
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It breaks ATP into ADP and Pi
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It allows ATP to bind to myosin
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It removes ATP that is bound to Myosin
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Detailed explanation-1: -Each meromyosin is divided into 2 parts-heavy meromyosin (HMM) consisting of a globular head with a short arm and light meromyosin (LMM) consisting of a tail. The globular head is an ATPase and has binding sites for ATP and active sites for actin.
Detailed explanation-2: -Globular head of myosin contains an ATPase enzyme that along with CO2+ and mg2+ ions catalyses the breakdown of ATP during muscle contraction.
Detailed explanation-3: -Each meromyosin has two important parts, a globular head with a short arm and a tail, the former being called the heavy meromyosin (HMM), and the light meromyosin (LMM). The globular head is an active ATPase enzyme and has a binding site for ATP and an active site for actin. Thus, option B is the correct answer.
Detailed explanation-4: -Globular head of myosin contains an ATPase enzyme that along with calcium and magnesium ions catalyses the breakdown of ATP during muscle contraction.