Glycolysis (Part 4 4) Payoff Phase Review

Glycolysis (Part 4 4) Payoff Phase Review

Assessment

Interactive Video

Science, Chemistry

University

Hard

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The video tutorial explains glycolysis, focusing on the investment and payoff phases. It details how ATP is consumed and generated, the role of enzymes like G3P dehydrogenase and phosphoglycerate kinase, and the formation of high-energy molecules such as NADH and ATP. The tutorial concludes with the net yield of glycolysis and the transition of pyruvate to the TCA cycle.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of the investment phase in glycolysis?

To produce NADH

To split glucose into two molecules

To convert pyruvate to acetyl-CoA

To generate ATP

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to dihydroxyacetone phosphate (DHAP) during glycolysis?

It is converted to pyruvate

It is oxidized to form NADH

It is converted to glyceraldehyde 3-phosphate (G3P)

It is used to generate ATP

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many glyceraldehyde 3-phosphate (G3P) molecules are produced per glucose molecule in glycolysis?

One

Two

Four

Three

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which enzyme is responsible for the conversion of G3P to 1,3-bisphosphoglycerate?

G3P dehydrogenase

Phosphofructokinase

Hexokinase

Pyruvate kinase

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the net gain of ATP molecules at the end of the payoff phase of glycolysis?

Six

Four

Zero

Two

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of phosphoglycerate mutase in glycolysis?

It converts pyruvate to lactate

It converts ATP to ADP

It converts glucose to glucose-6-phosphate

It converts 3-phosphoglycerate to 2-phosphoglycerate

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which molecule is formed by the action of enolase during glycolysis?

Lactate

Pyruvate

Phosphoenolpyruvate (PEP)

Acetyl-CoA

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