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10 Cards in this Set
- Front
- Back
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What is a cofactor?
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-Metal ions that combine with an enzyme
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What is a coenzyme
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- large organic compound that combines with an enzyme (ie water soluable enzymes
(fat soluble vitamins are not coenzymes) |
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What do irreversible inhibitors usually do to the enzyme?
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Usually make new bonds that alter the active site and make it unfunctional.
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If you increase the substrate, what will happen to the rate (until vmax) with the following inhibitors:
a. Competitive inhibitor b. Non-competetive c. Irreversible |
a. Increase until Vmax
b. No Change to rate c. No Change to rate |
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Where do non-competitive inhibitors bind?
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They bind to the allosteric site
(allosteric means anything other than the active site) |
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What do ligase enzymes do?
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They combine two small molecules to a big molecule often with a transfer of energy rich molecues. (ie. ATP, UTP, etc)
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What do lyase enzymes do?
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Catalyze addition and elimination reactions
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Which type of enzyme class involves a NADH
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oxidoreductase
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How would you know if a vitamin is not a coenzyme based on its stucture?
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If it has long carbon chains, it is a fat soluble vitamin.
FAT SOLUBLE VITAMINS ARE NOT COENZYMES!! |
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Where does Krebs take place?
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Matrix of the mitochondria
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