DP Biology (first assessment 2025)

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Question 21M.1A.SL.TZ1.2

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1A.SL.TZ1.2
Level SL Paper 1A Time zone TZ1
Command term Question number 2 Adapted from N/A
2.
[Maximum mark: 1]
21M.1A.SL.TZ1.2

The images show samples of red blood cells that were placed in different concentrations of salt solutions.

Which process explains the observations shown in the images?

A. Active transport

B. Exocytosis

C. Facilitated diffusion

D. Osmosis

[1]

Markscheme

D

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