IB Biology HL C1.2.4 Cell Respiration System Questions

Learn how enzyme-controlled respiration oxidizes organic compounds in steps, releasing energy for ATP production; explore oxygen use and metabolite data as evidence in IB Biology HL C1.2.4.

Exam points

Define cellular respiration as the enzyme-controlled release of energy from organic compounds.
Explain that carbon compounds are oxidized in steps so energy can be transferred to ATP.
Interpret oxygen-consumption and metabolite data as evidence of respiration and the organic compounds used.

[Maximum number: 1]

What occurs during the stages of respiration?

Stage of respiration

Decarboxylation

Reduced NAD produced

Glycolysis

Link reaction

Yes

Krebs cycle

Yes

Electron transport chain

Yes

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IB Biology HL C1.2.4 Cell Respiration System Questions question 1