IB Biology SL B2.1.5 Osmosis and Aquaporins Question Bank
Practise IB Biology SL B2.1.5 through questions on net water movement, membrane permeability and how aquaporins change osmosis rate.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Explain osmosis as passive water movement across a partially permeable membrane.
- Use aquaporin and frog-egg data to interpret water movement and changes in osmosis rate.
B2.1.5—Osmosis and aquaporins question 1
[Maximum number: 2]
Describe the movement of water across membranes.
osmosis / moves passively;
from regions of low solute/high water potential/concentration to high solute concentration / low water potential/concentration;
passes through protein channels/aquaporins/selectively-permeable membrane;
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