Term
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Definition
| catylazes condensation in absence of ATP |
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Term
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Definition
| catalyzes condensation with need of ATP |
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Term
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Definition
| catalyzes phosphorylation reactions. transfer of phosphoryl group from ATP to an acceptor |
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Term
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Definition
| catalyzes REMOVAL of a phosphoryl group from a phosphate ester, DEPHOSPHORYLATION |
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Term
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Definition
| catalyzes the removal of pairs of hydrogen atoms |
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Term
| what are the three regulatory enzymes that act as metabolic valves to preserve homeostasis? |
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Definition
| hexokinase, phosphofructokinase, pyruvate kinase |
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Term
| what is the regulatory enzyme in glycolysis |
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Definition
|
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Term
| what role does mercury and iodoacetate play in glycolysis? |
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Definition
| they bind to the sulfhydryl group in the active site of glyceraldehyde 3-P dehydrogenase. |
|
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Term
| what are the specific steps of ATP synthesis? |
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Definition
| phosphoglycerate kinase and pyruvate kinase |
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Term
| what two intermediates are channeled through glycolytic enzyme complexes? |
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Definition
| glyceraldehyde 3 phosphate dehydrogenase and phosphoglycerate kinase |
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Term
| how does arsenate affect glycolysis? |
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Definition
it resembles Phosphate and can substitute for it in the glyceraldehyde 3-P dehydrogenase reaction.
the phosphoglycerate kinase step is skipped and ATP synthesis does not occur |
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Term
| how many pyruvate are produced from one molecule of glucose? |
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Definition
|
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Term
| how many ATP are produced from one molecule of glucose? |
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Definition
|
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Term
| how many NADH's are produced from one molecule of glucose? |
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Definition
|
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Term
| how many ADP are produced from one molecule of glucose? |
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Definition
|
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Term
| how many H+'s are produced from one molecule of glucose? |
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Definition
|
|
Term
| how many H20 are produced from one molecule of glucose? |
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Definition
|
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Term
| what is the fate of pyruvate in the absence of oxygen? |
|
Definition
| production of lactic acid to regenerate NAD+ which is catalyzed by lactate dehydrogenase |
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Term
| what are the products of glycolysis in yeast |
|
Definition
pyruvate-->acetaldehyde (pyruvate decarboxylase)
acetaldehyde-->ethanol (alcohol dehydrogenase) |
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Term
| hexokinase is allosterically inhibited by |
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Definition
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Term
| Which isozyme exhibits lower enzyme activity? |
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Definition
|
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Term
| which isozyme handle more glucose |
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Definition
|
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Term
| pyruvate kinase is allosterically inhibited by |
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Definition
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Term
| Phosphorylation of hepatic pyruvate kinase |
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Definition
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Term
| what two factors activate fructose 1,6 biphosphate, activating glycolysis |
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Definition
AMP,ADP and fructose 2,6 bisphoshate.
also a decrease in the enzyme 2,6 bisphosphatase |
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Term
| what happens to glycolysis in the fed state? and how? |
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Definition
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Term
| what is a source of precursors for glycogen biosynthesis |
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Definition
|
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Term
| what is a source of precursors for lipid biosynthesis |
|
Definition
| glyceraldehyde 3 phosphate |
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Term
| this is a precursor for nucleic acid |
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Definition
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Term
| source of precursors for AA biosynthesis |
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Definition
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