DP Biology (first assessment 2025)

Question 22M.1A.HL.TZ2.30

Date	May 2022	Marks available	[Maximum mark: 1]	Reference code	22M.1A.HL.TZ2.30
Level	HL	Paper	1A	Time zone	TZ2
Command term		Question number	30	Adapted from	N/A

30.

[Maximum mark: 1]

22M.1A.HL.TZ2.30

The mitochondrion in the electron micrograph shows some features that make it efficient for its function. Which labelled feature allows a rapid build-up of proton concentration for chemiosmosis?

[1]

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C. Interaction and interdependence » C1.3. Photosynthesis » C1.3.12. ATP production by chemiosmosis in thylakoids

C. Interaction and interdependence » C1.2. Cell respiration » C1.2.15. Chemiosmosis and the synthesis of ATP in the mitochondrion

Question 22M.1A.HL.TZ2.30

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