Diffusion doesnʹt require energy. Why do plants expend energy to actively transport minerals into root hairs?

Question

Quizplus · Accepted Answer

Minerals in the soil are often at much lower concentrations than inside the plant's root cells. Active transport is necessary to move these minerals from areas of lower concentration (in the soil) to areas of higher concentration (inside the root cells), against their concentration gradient, which requires energy.

Diffusion Doesnʹt Require Energy