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15 Cards in this Set
- Front
- Back
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Define enzyme.
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a protein that's a biological catalyst
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Define catalyst.
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substance that reduces the activation energy, and consequently speeds up the reaction
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Define substrate
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molecule on which an enzyme acts
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Define rate
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amount/time
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Define activation energy
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initial energy required for a chemical reaction to start
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Define catalase
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rate of enzyme activity
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Define peroxidase
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substance that catalyzes the oxidation of a compound by decomposing hydrogen peroxide
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Define pH
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measure of acidity
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enzymes are sensitive to what 4 things?
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pH, salts, temperature, and the presence of coenzymes
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cellular respiration
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oxidation of compounds in cells to produce energy
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chemical energy
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energy from a chemical reaction
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ADP
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adenosine diphosphate nucleotide produced by hydrolysis of the terminal phosphate of ATP
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ATP
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adenosine triphosphate composed of adenine ribose and three phosphate groups principal carrier of chemical energy in cells
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glycolysis
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1 glucose --> 2 pyruvates +2 ATP
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oxidative phosphorylation
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electron transport chain & chemiosmosis/powered by oxygen/creates 32-34 ATP
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