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Chemotaxis - Natural movement of cells along a concentration gradient, either away or towards chemical stimulus

Diffusion distances are short

Concentration Gradients are maintained

Diffusion surfaces are large

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What can affect the speed of diffusion?

The speed of diffusion can be affected by the temperature, molecular size, concentration gradient, and the medium through which diffusion occurs. Higher temperatures typically increase the speed of diffusion, while larger molecules diffuse more slowly. Additionally, a steeper concentration gradient across the medium will result in faster diffusion.


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No, increasing the distance between particles does not speed up the rate of diffusion. In fact, diffusion rate is influenced by factors such as concentration gradient, temperature, and particle size but not necessarily distance alone. The rate of diffusion is generally slower over larger distances.


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How could you measure the speed of diffusion in gasses?

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Does temperature have an effect on the rate of diffusion?

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