Root Hair Cells Flashcards

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Where are root hair cells found in a plant?

On the surface of young roots, just behind the root tip.

To absorb water and mineral ions from the soil into the plant.

It gives a large surface area so they can absorb more water and minerals.

Water enters by osmosis, from higher water concentration in the soil to lower inside the cell.

They move in by active transport, which uses energy to move ions from low to high concentration.

They release energy for active transport of mineral ions from the soil.

So water and minerals have only a short distance to move into the cell.

They are underground, where there is little or no light, so photosynthesis cannot happen.

It lowers the water concentration inside the cell, so water moves in from the soil by osmosis.

They have a large surface area, thin walls and many mitochondria to speed up absorption.