Question

When a muscle cell demands energy to contract, what happens to ATP?

A. ATP makes more ATP.


B. ATP is hydrolyzed and turns into ADP


C. ATP is phosphorylated.


D. ATP is shuttled to the mitochondria

Answer 1

B. ATP is hydrolyzed and turns into ADP

ATP --> ADP + P = HYDROLYSIS
ADP + P --> ATP = PHOSPHORYLATION