Question

When do mineral ions enter the root hair cell by diffusion and active transport

Answer 1

Explanation:

Actually Minerals cannot be absorbed by osmosis because this is the movement of water only. Also They cannot be absorbed by diffusion , because the minerals are in very low concentration. Instead, active transport is used. The root hair cells have carrier proteins in their cell membranes.

The root hair cells have carrier proteins in their cell membranes. These pick up the mineral ions and move them across the membrane into the cell against the concentration gradient . ... Because active transport moves ions against the concentration gradient into the root hair cells, energy is needed.

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