Question

Which of the following best explains how simple diffusion helps a cell maintain homeostasis?

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A.
It traps molecules inside the cell to prevent changes in concentration.

B.
It uses energy to move molecules from low to high concentration

C.
It allows molecules to move from high to low concentration without energy, balancing internal conditions.

D.
It moves molecules randomly regardless of concentration differences.

Answer 1

C. It allows molecules to move from high to low concentration without energy, balancing internal conditions. Simple diffusion is passive and moves substances down their concentration gradient, helping the cell equalize concentrations and maintain homeostasis.