Question

Why are living roots essential for root pressure to develop?​

Answer 1

Answer:

• Plants absorb water from soil by osmosis.

• The mineral ions are actively absorbed by the roots from soil.

• These mineral ions get accumulated in cortical cells of root which leads to osmotic entry of water.

• The continuous flow of water develops hydrostatic pressure in roots, known as root pressure.

• Thus, living roots are essential for root pressure to develop which causes water movement in plants.

Answer 2

Answer:

Root pressure occurs in the xylem of some vascular plants when the soil moisture level is high either at night or when transpiration is low during the day. ... Water then diffuses from the soil into the root xylem due to osmosis. Root pressure is caused by this accumulation of water in the xylem pushing on the rigid cells.

Explanation:

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