When a muscle cell demands energy to perform the work of contraction, what happens to ATP?

Question

 
a.ATP manufactures more ATP.

b.ATP adds on a phosphate group.

c.ATP catalyzes the reaction.

d.ATP loses a phosphate group.

Answer 1

During muscle contraction ATP provides energy for the biological action of contraction by breaking down and participating in the reaction that produces ADP and Phosphate. Therefore, ATP loses a phosphate group as mentioned in choice "d"  in the question.

 

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