4
AssignmentDropdown

The Human Skeleton

Question 4 • PA Human Anatomy & Physiology A 2026-2027 WHITE IC

Energy is released when bonds are broken.

Answer
A
adenosine
B
ribose
C
phosphate

Explanation

Energy is released overall when ATP is hydrolyzed and its terminal phosphate group is removed. Strictly, breaking a chemical bond alone requires energy; the ATP reaction releases energy because forming the new products releases more energy than is used to break the bond. The matching choice is phosphate.

AI-written and checked against the verified answer.