Cellular Respiration Quiz (1)

In glycolysis, one molecule of glucose is converted to:

• Two molecules of CO₂

• Two molecules of pyruvate

• One molecule of acetyl-CoA

• One molecule of lactic acid

Where does glycolysis occur in eukaryotic cells?

• Mitochondrial matrix

• Cytosol

• Inner mitochondrial membrane

• Nucleus

What are the net products of glycolysis per glucose molecule?

• 2 ATP, 2 NADH, and 2 pyruvate

• 4 ATP, 4 NADH, and 2 acetyl-CoA

• 1 ATP and 1 NADH

• 6 ATP and 2 CO₂

Pyruvate processing occurs in which part of the cell?

• Cytoplasm

• Nucleus

• Mitochondrial matrix

• Inner membrane space

What is produced during pyruvate processing (per pyruvate)?

• Acetyl-CoA, CO₂, and NADH

• ATP, NADH, and FADH₂

• CO₂ and ATP

• Acetyl-CoA and FADH₂

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The citric acid cycle completes the oxidation of glucose by:

• Converting pyruvate to glucose

• Breaking acetyl-CoA into CO₂ and transferring electrons to NAD⁺/FAD

• Creating glucose from CO₂

• Using oxygen to form water directly

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For every glucose molecule, how many turns of the citric acid cycle occur?

• 1

• 2

• 3

• 4

What is the total CO₂ output after glycolysis, pyruvate processing, and the CAC (per glucose)?

• 2

• 4

• 6

• 8

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NADH and FADH₂ primarily serve as:

• ATP donors

• Electron carriers to the ETC

• Carbon sources for the CAC

• Proton pumps

In the ETC, the final electron acceptor is:

• NAD⁺

• ATP

• Oxygen

• Carbon dioxide

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3