ExamAdept

Phosphofructokinase, the major flux-controlling enzyme of glycolysis is allosterically inhibited and activated respectively by

A:

ATP and PEP

B:

AMP and Pi

C:

ATP and ADP

D:

Citrate and ATP

Answer: C

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Which of the following is not a mechanism for altering the flux of metabolites through the rate-determining step of a pathway?

A:

Allosteric control of the enzyme activity

B:

Diffusional coupling between adjacent active sites

C:

Genetic control of the enzyme concentration

D:

Covalent modification of the enzyme

Answer: B

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Which of the following could act as an uncoupler of electron transport and ATP synthesis?

A:

The Fo base-piece of ATP synthase (without the Fl subunit)

B:

Dinitrophenol

C:

neither (a) nor (b)

D:

Both (a) and (b)

Answer: D

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The glycolytic pathway (glucose → 2 pyruvate) is found

A:

in all living organisms

B:

primarily in animals excluding particles

C:

only in eukaryotes

D:

only in yeast

Answer: A

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ATP is from which general category of molecules?

A:

Polysaccharides

B:

Proteins

C:

Nucleotides

D:

Amino acids

Answer: C

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Questions for: Glycolysis