Question

how does atp supply energy for cellular activities?
○ by breaking off a phosphate group from its structure
○ by releasing the sugar molecule from its structure
○ by adding a phosphate group to its structure
○ by attaching itself to a glucose molecule

Explanation:

ATP (adenosine triphosphate) has a structure with three phosphate groups. When a phosphate group is broken off (hydrolysis of the terminal phosphate bond), energy is released. Releasing a sugar molecule, adding a phosphate, or attaching to glucose are not how ATP supplies energy. The correct mechanism is breaking off a phosphate group.

Answer:

A. by breaking off a phosphate group from its structure