SSC
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A molecule that diffuses down a concentration gradient goes from an area of ____ concentration into an area of ____ concentration.
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high, low
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low, high
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passive, active
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active, passive
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Explanation:
Detailed explanation-1: -A concentration gradient is the difference in concentration of a substance from one location to another. A molecule diffuses down its concentration gradient by moving from one region of higher concentration to a region of lower concentration.
Detailed explanation-2: -Answers. FACILITATED DIFFUSION. In facilitated diffusion, substances move into or out of cells down their concentration gradient through protein channels in the cell membrane. Simple diffusion and facilitated diffusion are similar in that both involve movement down the concentration gradient.
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