RGBrunette
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Report Thread starter 6 years ago
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oxygen and water move through cell surface membranes into cells.
Describe two ways in which these movements are similar:

i know its got something to do with concentration gradients does anyone have a full idea as to how to answer the question ??

unsure

thanx !
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CatnipGlows
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The question is a bit oddly worded, but I can give you some help I think.

Oxygen moves by diffusion, water by osmosis.
Both involve movement of molecules from an area of high concentration to an area of low concentration. Both of these occur across a semi-permeable membrane, and they both continue until equilibrium. When equilibrium is reached, the molecules still move across the membrane, however concentration is equal on both sides.
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RGBrunette
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#3
Report Thread starter 6 years ago
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thank u for ur help !

used some of those points and managed to find the mark scheme to help me out too .

thanx again
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