Powerpoint lecture covering the following in a modern, concise format:
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 Lectures are available.
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