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Metabolism: Glycolysis Step 6 Quiz

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Questions and Answers

What is the total number of ATP molecules generated through oxidative phosphorylation per NADH molecule?

8 ATP

4 ATP

2 ATP (correct)

6 ATP

In which step of the Krebs cycle is FADH2 produced?

Step 5

Step 7

Step 4 (correct)

Step 13

What is the role of NADH and FADH2 in cellular respiration?

Participate in glycolysis

Synthesize glucose in the Krebs cycle

Facilitate substrate-level phosphorylation

Act as electron donors in the electron transport chain (ETC) (correct)

Where does the conversion of pyruvate into acetyl-CoA occur in cellular respiration?

Krebs cycle (B) Signup and view all the answers

What is the final product formed from the oxidation of acetyl-CoA in the Krebs cycle?

Carbon dioxide (CO2) (D) Signup and view all the answers

How many ATP molecules are generated from a single molecule of glucose through cellular respiration?

~38 ATP (B) Signup and view all the answers

Which of the following is the correct order of steps in glycolysis?

Hexokinase, Phosphoglucose isomerase, Aldolase, Triose phosphate isomerase, Phosphofructokinase, Glyceraldehyde 3-phosphate dehydrogenase, Phosphoglycerate kinase, Phosphoglycerate mutase, Enolase, Pyruvate kinase (D) Signup and view all the answers

What is the primary function of the glyceraldehyde 3-phosphate dehydrogenase enzyme in glycolysis?

To oxidize the substrate and produce NADH (B) Signup and view all the answers

Which of the following enzymes is responsible for the substrate-level phosphorylation step in glycolysis?

Phosphoglycerate kinase (C) Signup and view all the answers

What is the end product of glycolysis?

Pyruvate (A) Signup and view all the answers

Which enzyme is responsible for the cleavage of a six-carbon sugar molecule into two three-carbon molecules during glycolysis?

Aldolase (D) Signup and view all the answers

What is the primary function of the enolase enzyme in glycolysis?

To rearrange the atoms of the substrate molecule (C) Signup and view all the answers