1. ____________ energy is defined as the energy possessed by a body due to its position relative to another body that attracts or repels it.

2. The total of all the chemical reactions that an organism performs is called ____________.

4. ____________ is the ultimate source of energy that powers life on earth.

5. Oxidation is ________ of electrons, and reduction is _________ of electrons.

6. In endergonic reactions, the products of the reaction possess ________ energy than the reactants.

7. ______________ is the energy a molecule must possess in order to undergo a specific chemical reaction.

8. ______________ reduce the amount of activation energy needed to jump-start a reaction.

9. The molecule used by all cells to do work, to drive metabolic reactions, is _______.

10. ___________, a process by which more complex molecules are built up, and ___________, the reverse process by which complex molecules are broken down into simpler ones; together, these processes constitute metabolism.

11. ATP, consisting of ________________, is structurally similar to NAD.

12. ATP is produced through the process of oxidative respiration:

13. An ATP molecule possesses high energy bonds; the cleavage of one such bond releases (quantity) ____________ of energy.