During muscle contraction, immediate energy is provided by

Phosphagen

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ADP

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Acetyl-CoA

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AMP

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Solution

The correct option is A Phosphagen
The ATP-PC system consists of adenosine triphosphate (ATP) and phosphocreatine (PC). Phosphagen is a high energy phosphoric ester that serves as a reservoir of phosphate-bond energy, as phosphocreatine in vertebrates. During the first few seconds of exercise, the ATP-PC system is relied on almost exclusively, with energy coming from the breakdown of the ATP stores within the muscles. These ATP stores last only a few seconds after which the breakdown of PC provides energy for another 5-8 second of activity.

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Similar questions

Read the following statements about muscle contraction in humans:

i. Chemical energy is converted into mechanical energy during muscle contraction

ii. Acetylcholineeasterase is an enzyme that catalyzes the production of acetylcholine

iii. In a contracted muscle, volume remains the same.

iv. A contracted muscle becomes shorter and thicker.

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