Companion PDF worksheet for Edexcel IGCSE Biology Lecture 9 - Movement Across Membranes. Contains short answer questions, an activity requiring lateral thinking and exam-style questions.
Specification Point 2.15 - Understand the processes of diffusion, osmosis and active transport by which substances move into and out of cells.
Specification Point 2.16 - Understand how factors affect the rate of movement of substances into and out of cells, including the effects of surface area to volume ratio, distance, temperature and concentration gradient.
Specification Point 2.17 - Practical: Investigate diffusion and osmosis using living and non-living systems.
Complete set of Chapter 1 Worksheets are available.
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