The spreading of particles in a gas or any substance in solution form from a region with higher concentration to a region of lower concentration.
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How does oxygen diffuse in cells?
Oxygen diffuses in to the cells from a higher concentration outside to a lower concentration inside so cells can respire.
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How can you increase the speed of diffusion?
By increasing th difference in concentration and by increasing the temperature.
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What is a Visking Tube?
A partially permeable membrane that contains millions of tiny holes which only let small molecules, like water, diffuse through. Large molecules such as starch cannot pass the membrane.
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What can be used as a model of a cell?
A Visking Tube
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Other cards in this set
Card 2
Front
How does oxygen diffuse in cells?
Back
Oxygen diffuses in to the cells from a higher concentration outside to a lower concentration inside so cells can respire.
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