DP Biology (first assessment 2025)

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Question 21N.1A.HL.TZ0.4

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Date November 2021 Marks available [Maximum mark: 1] Reference code 21N.1A.HL.TZ0.4
Level HL Paper 1A Time zone TZ0
Command term Question number 4 Adapted from N/A
4.
[Maximum mark: 1]
21N.1A.HL.TZ0.4

How do both mitochondria and chloroplasts provide evidence for the endosymbiotic theory?

A. They have double membranes.

B. They have 80S ribosomes similar to prokaryotes.

C. They contain the same DNA as the nucleus of the cell.

D. They exist together in eukaryote cells for their mutual benefit.

[1]

Markscheme

A

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