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Chapter 6
ATP and Energy Cycles
| Term | Definition |
|---|---|
| adenine | nitrogen containing compound found in ATP, DNA, and RNA |
| metabolism | collection of the chemical reactions that occur in the cell |
| potential energy | stored energy |
| kinetic energy | energy of motion |
| calorie | a unit used to measure the amount of energy food contains |
| ADP | adenosine diphosphate; a molecule converted to ATP by the addition of a phosphate |
| phosphorylation | the addition of a phosphate group to a molecule |
| catalyst | a chemical that helps in a chemical reaction, but is not consumed or changed in the reaction |
| obesity | a condition of being greatly overweight |
| diabetes | a genetic disease in which a person has too much sugar in his or her blood |
| saliva | a liquid produced by glands in the mouth that helps in chewing and starts digestion |
| pepsin | an enzyme produced in the stomach for digestion |
| activation energy | the amount of energy needed to start a chemical reaction |
| substrate | a reactant molecule; the molecule on which an enzyme reacts |
| active site | the area on an enzyme where the substrate fits in shape and chemistry |
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ldydye1
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