Catabolism - Glycolysis

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24 Questions

How many ATP molecules are created during the generating phase of glycolysis?

4 ATP

What is the net ATP production per glucose molecule in glycolysis?

2 ATP

How many NADH molecules are generated per glucose molecule in glycolysis?

2 NADH

Which reactions in glycolysis are irreversible?

All of the above

Which phase of glycolysis requires ATP?

Preparative Phase

How many ATP molecules are required during the preparatory phase of glycolysis?

2 ATP

What is the role of Mg2+ cofactor in Reaction 1 of glycolysis?

It stabilizes the enzyme

How does Reaction 2 of glycolysis proceed in the forward direction despite having a positive ΔG°?

It is coupled with an exergonic reaction

What is the rate-limiting and committing step of glycolysis?

Reaction 3

What would be the effect on glycolysis if triose phosphate isomerase was not present/able to function?

Glycolysis would stop at Reaction 5

Which enzyme is responsible for Reaction 6 of glycolysis?

Glyceraldehyde-3-phosphate dehydrogenase

What is the ΔG° for Reaction 8 of glycolysis?

4.4 kJ/mol

Which enzyme is responsible for Reaction 9 of glycolysis?

Enolase

Which Enzyme is responsible for the last step of glycolysis?

Pyruvate Kinase

Which enzyme is responsible for the formation of fructose 1,6-bisphosphate?

Phosphofructosekinase 1(PFK-1)

What is the main rate-limiting reaction in glycolysis?

Fructose 6-Phosphate to Fructose 1, 6-biphosphate

Aldolase catalyzes the formation of...

Dihydroxyacetone phosphate + Glyceralaldehyde 3-phosphate

Conversion fo G-6-P to F-6-P is catalyzed by

Phosphoglucose isomerase

Phosphoglycerate kinase will..

Remove a phosphate from biphosphoglycerate

Enolase produces

H2O + Phosphoenolpyruvate

Pyruvate kinase produces...

Pyruvate + ATP

Which enzyme(s) requires magnesium as a cofactor?

Pyruvate kinase

PFK phosphorylates..

F-6-P

Triose phosphate isomerase catalyzes the...

Conversion of DHAP to G3P

Test your knowledge of the phases and reactions involved in glycolysis with this informative quiz. Explore the preparative and ATP-generating phases, as well as the specific enzymes and reactions that occur. Challenge yourself with questions about glucose trapping and the overall overview of glycolysis.

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