if a substance is known to enter a cell by diffusion, what effect would raising the temperature have on the cell? Why does it have this effect?

Answer 1

Since this is not my area of expertise, I searched Google under the key words "cell diffusion temperature" to get these possible sources:

http://www.helium.com/tm/68702/diffusion-simplest-method-transport
http://biology.arizona.edu/sciconn/lessons/mccandless/reading.html

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.

I hope this helps. Thanks for asking.