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a dificiency of phosphorylase kinase in th eliver should yeild what effects on the body?
compared to a normal person liver glycogen after a meal would be ________
and blood glucose after a day-long fast ___________
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higher
lower
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one biochemical difference between a 96-hour fast and diabetes mellitus is that at the end of a fast....
in regards to the brain.
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the brain has a limiting amount of glucose to serve as fuel
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the major role of creatine kinase is to provide a direct souce of ___________
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ATP
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many pesticides are uncouplers of oxidative phosphorylation. The structural basis for their uncoupling action is the fact that they:
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are acids and both the acid and base forms are soluble in the lipid layer of membranes
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lactose intolerance is due to a ____________ of _______________ in the ____________
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deficiency
lactase
intestine
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arsnic is a poison because it can inhibit the enzyme ____________
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alpha-ketoglutarate dehydrogenase complex
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in the glycogen cascae, when the catalytic activity of the enzyme ____________ is low, the catalytic activity of the enzyme _______________ is also low.
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adenylate cyclase
phosphorylase
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the mafor souces of maetabolically synthesized glucose in the blood are __________ and _____________
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liver and kidney
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the liver and the kidneys are the only tissues to contain considerable levels of what enzyme
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glucose 6-phosphatase
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viagra acts as a structural analog of ____________
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3',5'-cyclic-GMP
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rotenone inhibits what enzyme?
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NADH-coenzyme Q oxidoreductase (complex I)
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ATP is synthesized on the ____________ side of the ____________ membrane
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matrix
inner mitochondrial
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Protons spontaneously flow down a thermodynamic gradient form the ________ side to the ________ side of the ___________ to drive ATP synthesis
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intermembrane space
matrix
inner mitochondrial membrane
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the major role of glucose 6-phosphate dehydrogenase is to provide a direct source of ___________
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NADPH
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a major role of glucose 6-phosphatase is to provide a direct souce of _________________
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glucose
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a mojor role of alpha-ketoglutarate dehydrogenase is to provide a direct source of __________
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NADH
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cyanide poisoning includes direct inhibition of what enzymes?
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cytochrome oxidase (complex IV)
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what is the most likely deficient enzyme for a pt with the following:
developed seizures at age 3 months
elevated lactic acidosis
elevated pyruvic acidosis
intermittent hypoglycemia and ketosis
administration of alanine (a precursor of pyruvate) failed to elevate blood glucose
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pyruvate carboxylase
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a pt with malaria has a deficiency in activity of the enzyme glucose 6-phosphate dehydrogenase. what action do you want an administed drug to have?
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decrease the levels of reduced glutathione in erythrocytes
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ketone bodies acetoacetate ad 2-hydroxybutyrate ______________
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are energy sources for several tissues
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beri beri is a deficiency of
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thiamine
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the enzyme thiaminase results in low catalytic activity of _____________
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the pyruvate dehydrogenase complex
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if isoproterenol (in asthma sprays) is a beta-adrenergic agonist what would you expect it to do to the following:
1 phosphorylase
2 glycogen synthase
3 Protein kinase A
4 adenylate cyclase
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increase
decrease
increase
increase
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people of East Asian decent become flushed at cocktail parties because they have lower activity of what enzyme?
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aldehyde dehydrogenase
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