Concentration Gradients and Diffusion Video Lessons

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Concept: Concentration Gradients and Diffusion

Problem: Simple diffusion is defined as the movement of a. gas molecules across a membraneb. gas or water molecules across a membranec. molecules from areas of lower concentration to areas of higher concentrationd. molecules from areas of higher concentration to areas of lower concentratione. water molecules across a membrane.

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Simple Diffusion: solute molecules move across the membrane unaided; moves from higher to lower concentration

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Problem Details

Simple diffusion is defined as the movement of 

a. gas molecules across a membrane

b. gas or water molecules across a membrane

c. molecules from areas of lower concentration to areas of higher concentration

d. molecules from areas of higher concentration to areas of lower concentration

e. water molecules across a membrane.

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