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What is diffusion?



A. The movement of molecules through a semi-permeable membrane from an area of lower concentration to an area of higher concentration
B. The movement of molecules through a semi-permeable membrane from an area of higher concentration to an area of lower concentration
C. The movement of molecules across a semi-permeable membrane until there are equal amounts on each side of the membrane
D. Molecules desire to spread as far from a membrane as possible

This question is part of Diffusion and Osmosis
Asked by RickiHeicklen, Last updated: Mar 06, 2019

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2 Answers

C. Snow

I am a well trend Motivational speaker at California.

C. SnowMotivator, MA, California
Motivator, MA, California

Answered on Mar 06, 2019

The answer to this is letter B. Diffusion is the process by which the molecules will move through a permeable membrane from an area of higher concentration to an area of lower concentration. Diffusion is known to be important to a lot of organisms because, without proper diffusion, it will be harder for people to absorb the nutrients that their body needs.

The answer to this is letter B. Diffusion is the process by which the molecules will move through a

It will also be harder for the body to get rid of the toxins that should be removed. Breathing is one of the examples of diffusion. The lungs make it a point to breathe in oxygen then carbon dioxide is also removed by the body.

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RickiHeicklen

RickiHeicklen

Answered on Jan 19, 2018

The movement of molecules through a semi-permeable membrane from an area of higher concentration to an area of lower concentration

The correct answer is The movement of molecules from an area of higher concentration to an area of lower concentration because diffusion is specifically trying to equalize the percentage, or concentration, of all substances in two areas. Therefore, molecules move from a higher concentration to a lower concentration to try to balance the two out.
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