Skip to main content
O-LevelBiologyTransport in Plants5090/12 · Oct/Nov 2018 · Q31 Mark

The diagram shows a root hair cell and surrounding soil particles. [Figure 3.1] Osmosis occurs when regions of higher and lower concentration of water molecules are separated by a partially permeable membrane. On the diagram, what are these regions?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Ahigher concentration of water molecules: 1, partially permeable membrane: 2, lower concentration of water molecules: 4
Bhigher concentration of water molecules: 1, partially permeable membrane: 3, lower concentration of water molecules: 4
Chigher concentration of water molecules: 4, partially permeable membrane: 2, lower concentration of water molecules: 1
Dhigher concentration of water molecules: 4, partially permeable membrane: 3, lower concentration of water molecules: 1

✓ Correct answer

B: higher concentration of water molecules: 1, partially permeable membrane: 3, lower concentration of water molecules: 4

Practise more questions on this topic

Oracle Prep sorts past-paper questions by topic, so you can drill Transport in Plants and see which topics are most likely to come up next.

Sign up free →

About this question

Topic
Transport in Plants, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, Oct/Nov 2018 Paper 1 Variant 2, question 3.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Related Biology questions

© 2026 Oracle Prep