Why is atp an example of chemical potential energy?
a it stores energy until a cell needs it.
b it creates and destroys energy
c it assembles mitochondria
d it drives reactions to make glucose

The right answer is A. It stores energy until a cell needs it.

ATP is a ribose-linked adenine molecule that is attached to a chain of three phosphate groups.

The mechanism is the transfer of a phosphate group to another molecule and the ATP then becomes adenosine diphophate (ADP).

But a cell has very little ATP. And as it consumes permamently, it must constantly manufacture (synthesize) and it is including cellular respiration that provides the energy necessary for the manufacture of ATP by allowing phosphorylation (addition of a phosphate to the ADP).

D. Different parts of the molecule have slightly different charges

Explanation:

Water is a polar molecule because different areas of the molecule have different and opposite charges

Oxygen has a higher electronegativity than hydrogen, which means the electrons of the water molecule will stay closer to the oxygen than the hydrogen.

This creates an uneven distribution where the oxygen has a partial negative charge and the hydrogen has a partial positive charge.

So, D is the correct answer.