Glycolysis Quiz

Which of the following enzymes catalyzes the first step of glycolysis?

• Hexokinase

• Pyruvate kinase

• Mutase

• Phosphofructokinase-1

What is the general term used for the anaerobic degradation of glucose to obtain energy?

• Anabolism

• Oxidation

• Fermentation

• Metabolism

Whenever the cell's ATP supply is depleted, which of the following enzyme's activity is increased?

• Hexokinase

• Pyruvate kinase

• Glucokinase

• Phosphofructokinase-1

Cleavage of Fructose 1, 6-biophosphate yields ___________

• Two aldoses

• Two ketoses

• An aldose and a ketose

• Only a ketose

Dihydroxyacetone phosphate is rapidly and reversibly converted to ___________

• Glyceraldehyde 3-phosphate

• 1, 3-bis-phosphoglycerate

• Fructose 1, 6-bisphosphate

• Fructose 6-phosphate

What is the first step in the payoff phase of glycolysis?

• Reduction of 1, 3-bisphosphoglycerate to glyceraldehyde 3-phosphate

• Oxidation of glyceraldehyde 3-phosphate to 1, 3-bisphosphoglycerate

• Reversible conversion of dihydroxyacetone phosphate to glyceraldehyde 3-phosphate

• Irreversible conversion of dihydroxyacetone phosphate to glyceraldehyde 3-phosphate

Which substrate is used in the last step of glycolysis?

• Glyceraldehyde 3-phosphate

• Pyruvate

• Phosphoenolpyruvate

• 1, 3-bisphosphoglycerate

High concentration of glucose 6-phosphate is inhibitory to ___________

• Hexokinase

• Pyruvate kinase

• Glucokinase

• Phosphofructokinase-1

The product formed in the first substrate level phosphorylation in glycolysis is ___________

• Pyruvate

• 3-phosphoglycerate

• 1, 3-bisphosphoglycerate

• 2-phosphoglycerate

Glycolysis converts ___________

• Glucose into pyruvate

• Glucose into phosphoenolpyruvate

• Fructose into pyruvate

• Fructose into phosphoenolpyruvate