Question

Describe the movement of molecules in the illustration. A) Molecules are moving from a lower concentration to a higher concentration. B) Molecules are moving from a higher concentration to a lower concentration. C) Molecules are moving from a higher concentration to a lower concentration and then from a lower to higher concentration. D) Molecules are moving from a lower concentration to a higher concentration and then from a higher concentration to a lower concentration.

Answer 1

B) Molecules are moving from a higher concentration to a lower concentration.

Step-by-step explanation:

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Answer 2

B) Molecules are moving from a higher concentration to a lower concentration

Step-by-step explanation:

In simple diffusion,non charged particles or lipid soluble molecules pass through the phospholipid bilayer in and out of a cell,moving from a higher concentration to lower concentration. Exchange of gases and most lipids pass through the cell membrane by the process of simple diffusion