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Movement in and out of cells

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Paul Sheffield

on 16 June 2015

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Transcript of Movement in and out of cells

Define diffusion
Be able to EXPLAIN diffusion in terms of particles
Understand how surface area and volume affect diffusion
Explain how concentration affects diffusion
Use Partcles and kinetic theory to explain how temperature affects diffusion
Watch the video
Write down a definition for diffusion
How do you think temperature will affect the speed of diffusion?
How does size affect surface area to volume ratio?
Calculate the surface area and volume for a 0.5, 1 and 2cm3 cube
What do you notice about the surface area to volume ratio?
How might this explain why babies get cold faster than adults?
How might it explain why animals evolved exchange surfaces as they got bigger?
what are the following structures used for?
What do they have in common?
Movement in and out of cells
Surface area to volume

Factors affecting Diffusion
Surface area to volume ratio
Draw the particles in a solid, liquid and gas
Full transcript