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Explain the effects of each of the following on gluconeogenesisand glycolysis is a live cell:

a) Increasing the concentration of AMP

b) Decreasing the concentration of acetyl CoA

c) Increasing the concentration of F2,6 BP

d) Phosphorylation of PFK-2

e) Phosphorylation of fructose 2,6-bisphosphatase

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Irving Heathcote
Irving HeathcoteLv2
28 Sep 2019
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Related questions

In liver cells, fructose-2,6-bisphosphate (F-2,6-bP):

a) is an intermediate in both glycolysis and gluconeogenesis.

b)is an intermediate in gluconeogenesis.

c) is an intermediate in glycolysis.

d)is a potent allosteric activator of fructose bisphosphatase and an inhibitor of phosphofructokinase.

e)is a potent allosteric activator of phosphofructokinase and an inhibitor of fructose bisphosphatase.

In an erythrocyte undergoing glycolysis, what would be the effect of a sudden increase in the concentration of...

a. ATP?

b. AMP?

c. fructose-1,6-bisphosphate?

d. fructose-2,6-bisphosphate?

e. citrate?

f. flucose-6-phosphate?

1) Glycolysis and gluconeogenesis are tightly controlled. Which of the following are activators of glycolysis?

A. Acetyl-CoA, insulin, alanine, citrate, ATP

B. ATP, F2,6BP, F1,6BP, insulin

C. F2,6BP, AMP, ADP, F1,6BP, insulin

D. Acetyl-CoA, ATP, glucagon, alanine, citrate

2)Which statement does NOT explain, why many biochemical processes are carried out via multi-step pathways rather than by single-step reactions (or only a few steps)?

A. Multi-step pathways allow for more control points to regulate biochemical processes.

B. There is greater control over the amounts of energy that are consumed or released at any one time.

C. Sharing of intermediates between pathways is facilitated this way.

D. The end products of most pathways can usually be produced only by the pathway reactions that nature has evolved.

3) Substrate-level phosphorylation is a term given to product formation resulting in ________.

A) Lipid oxidation

B) Lipid hydrolysis

C) ADP Phosphorylation

D) ATP hydrolysis

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