The hormone glucagon signifies the starved state, yet it inhibits glycolysis in the liver. How does this inhibition of an energyproduction pathway benefit the organism?
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The hormone glucagon signifies the starved state, yet it inhibits glycolysis in the liver. How does this inhibition of an energyproduction pathway benefit the organism?
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- The glucose that enters the glycolysis pathway is split into two molecules of _____. a. ATP b. phosphate c. NADH d. pyruvateThe hormone glucagon signifies the starved state, yet it inhibits glycolysis in the liver. How does this inhibition of an energy-production pathway benefit the organism?What is the amount of ATP yield per one glucose molecule? Is this amount always achieved? If not explain what happens to a cell’s essential metabolites when the requirement for biosynthesis is greater than the cells energy requirement? When the biosynthesis requirement is less than its energy requirement?
- Although the catabolism of glucose produces energy, the first step uses energy. Explain why.What is the key regulatory enzyme in glycolysis? Please explain how this enzyme is regulated just after a meal has been consumed.Why are some enzymes needed only in the gluconeogenesis pathway and not in the glycolysis pathway?
- Which of the following statements is correct? A) NAD+ is reduced to NADH during glycolysis, pyruvate oxidation, and the citric acid cycle. B) NAD+ has more chemical energy than NADH. C) NAD+ is oxidized by the action of hydrogenases. D) NAD+ can donate electrons for use in oxidative phosphorylation. E) NAD+ is reduced during fermentation in order for glycolysis to continue.Why is it important that gluconeogenesis is not the exact reversal of glycolysis?Which of the following must be available in sufficient supply for glycolysis to proceed? a. Glucose, NAD+, and ATP b. Pyruvate, NADH, and ATP c. Glucose, NADH, and ATP d. Acetyl-CoA, FAD, and NAD+ e. Pyruvate, NAD+, and ATP
- some times, the enzymes in TCA cycle are found in gly colysis to generate energy. Why is this posible even though they are not the sameOf the 36 molecules of ATP produced by the complete metabolism of glucose, how many are produced directly in glycolysis alone, that is, before the common pathway?How many of the 30 ATP molecules produced from the complete oxidation of 1 glucose molecule are produced during glycolysis?