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9 terms

BIO CH 6: Metabolism: Energy and Enzymes

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Active Site
Small part of enzyme fits with substrate/s (site undergoes small change in shape)
ADP (adenosine diphosphate)
Factors in producing ATP
ATP (adenosine triphosphate)
Common energy currency of cells
Coupled Reactions
Occur in the same place, same time, in a way that an energy-releasing (exergonic) reaction drives an energy requiring (endergonic) reaction
Enzyme
Protein that functions as an organic catalyst to speed a chemical reaction w/o being affected by the reaction
Enzyme inhibition
When a molecule (the inhibitor) binds to an enzyme and decreases its activity
1st Law of Thermodynamics
(Law of conservation of energy) Energy cannot be created/destroyed, but it can be changed from one form to another
2nd Law of Thermodynamics
Energy cannot be changed from one form to another w/o a loss of usable energy
Metabolism
Sum of all the chemical reactions that occur in a cell

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