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8 Cards in this Set
- Front
- Back
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Catabolism
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-Breakdown large molecules to form smaller molecules
-Exergonic: produce more energy than they consume -Hydrolysis reactions -Make ATP |
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Anabolism
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-Synthesize large molecules from small ones
-Endergonic: consume more energy than they produce -Dehydration synthesis -Use ATP |
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ATP intermediate of Catabolic/Anabolic reactions
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ATP couples anabolic and catabolic reactions (use and production)
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Coenzyme
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An organic cofactor- the nonprotein component of an enzyme, which activates the apoenzyme- the protein portion.
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Enzyme specificity importance
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Enzymes fit into the substrate's active site in a lock-key fashion. The fate of a compound is dependent on the acting enzyme.
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What happens to enzymes at higher/lower than optimum temperatures?
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High- enzyme is denatured
Low- rate of reaction is lowered, enzyme activity decreases |
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Why is Feedback inhibition Noncompetitive inhibition?
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When enough end-product is formed, it binds to the allosteric site (not the active site), altering the active site and preventing the substrate from binding, as occurs in noncompetitive inhibition.
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Ribozyme
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Function as catalysts, have active sites that bind to substrates, and are not used up in chemical reactions. (Act specifically on splicing RNA)
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