Question

Where is energy stored in ATP? How much of it does each molecule of ATP hold?

Answer 1

dunno

Answer 2

I can tell you where energy is stored, in ATP.

But I have no idea HOW MUCH energy there is, in a single molecule of ATP.

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Take a look at this picture:
http://fitfoodscience.com/wp-content/uploads/2012/03/ATP.jpg

This is a picture of Adenosine Triphosphate (ATP).

Do you see how ATP has THREE PHOSPHATE GROUPS?
(They're the three yellow colored groups.)

BETWEEN each of those phosphate groups is where the energy is stored.

And what I understand is that the most amount of energy is stored in between the SECOND and the LAST phosphate groups.
(The LAST phosphate group is all the way on the LEFT.)

When our bodies need to use the energy from ATP,
the LAST phosphate group is broken off.
And that is how the energy is released.