OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Molecules using simple diffusion move from
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high to low concentrations
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low to high concentrations
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no concentrations
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both concentrations
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Explanation:
Detailed explanation-1: -The net flow of molecules is always down their concentration gradient-from a compartment with a high concentration to one with a lower concentration of the molecule.
Detailed explanation-2: -Over time, the food coloring spreads from the region of high concentration into the region of low concentration, turning the whole cup of water purple. Another good example is how cream diffuses through a cup of coffee. It starts in an area of high concentration and then gradually moves into areas of low concentration.
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