Final answer:
The enzyme in the myosin head responsible for hydrolyzing ATP is called Myosin ATPase. When ATP is hydrolyzed, it is converted to ADP and inorganic phosphate, releasing energy.
Step-by-step explanation:
The enzyme in the myosin head that hydrolyzes ATP is called Myosin ATPase. When ATP is hydrolyzed, it is converted to ADP and inorganic phosphate, releasing energy. This energy causes a conformational change in the myosin head, which allows for further movement in muscle contraction.