DP Biology (first assessment 2025)

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Question 21M.1A.SL.TZ1.1

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1A.SL.TZ1.1
Level SL Paper 1A Time zone TZ1
Command term Question number 1 Adapted from N/A
1.
[Maximum mark: 1]
21M.1A.SL.TZ1.1

In mammals, mature red blood cells are specialized in that they lack nuclei, mitochondria or ribosomes. Which statement applies to red blood cells?

A. No chemical reactions take place within their cytoplasm.

B. They cannot produce new enzymes.

C. Materials cannot enter red blood cells.

D. Materials cannot exit red blood cells.

[1]

Markscheme

B

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