GLYCOLYSIS QUIZ

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

Both (a) and (b)

neither (a) nor (b)

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

Dinitrophenol

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YOUR ANSWER : ?

When concentration of the reactants is higher than the equilibrium concentration then

both (b) and (c)

more products will be formed

the gibbs free energy will be positive

the gibbs free energy will be negative

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YOUR ANSWER : ?

Glucose from the breakdown of glycogen is obtained in

the liver by phosphorolysis

the muscles by phosphorolysis

both (a) and (b)

the muscles by hydrolysis

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Glycogen has

α-1,6 linkages

α-1,4 and α-1,6 linkages

α-1,4 linkage

α-1,4 and β-1,6 linkage

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For every one molecule of sugar glucose which is oxidized __________ molecule of pyruvic acid are produced.

2

1

3

4

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ATP is from which general category of molecules?

Proteins

Polysaccharides

Nucleotides

Amino acids

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During catabolism, only about 40% of the energy available from oxidizing glucose is used to synthesize ATP. Remaining 60%

remains in the products of metabolism

is lost as heat

is stored as fat.

is used to reduce NADP

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YOUR ANSWER : ?

The active form of glycogen phosphorylase is phosphorylated, while the dephosphorylation of which active form occurs?

Glycogen hydrolase

Glycogen dehydrogenase

Glycogen semisynthase

Glycogen synthase

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Glycolytic pathway regulation involves

feedback, or product, inhibition by ATP

allosteric stimulation by ADP

All of these

allosteric inhibition by ATP

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Which of the following regulates glycolysis steps?

Pyruvate kinase

All of these

Hexose kinase

Phosphofructokinase

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