Question

write short note on root pressure​

Answer 1

Answer:

Root pressure is the transverse osmotic pressure within the cells of a root system that causes sap to rise through a plant stem to the leaves.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.

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Answer 2

Root pressure theory-----

this theory is applicable only in small plant where distance between root and leave in short

according to this theory is the water molecules entering the root cells from soil exerted pressure on the wall of root cells which is called root pressure this pressure is responsible for the transportation of water and Minerals from root to leaves .