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Agriculture · Q362

Plant Pathology

Graduate and Post Graduate · Agriculture · question 362

Q362

Endosmosis of water occurs when water potential of the cell sap is

A.
Higher
B.
Lower
Answer
C.
Equal
D.
None of these

Answer: Option B

Solution

Answer: Option B
Solution:
Endosmosis of water occurs when the water potential of the cell sap is Lower.
Endosmosis is the movement of water inside the cell from the outer surrounding, it occurs when the cell is placed in a hypotonic solution.
During endosmosis, water moves from the soil to the root which means the water potential of the cell sap of the root is lower than that of the soil.
Osmotic potential (ψs) results from dissolved solutes in cell sap and is proportional to solute concentration and inversely proportional to cell water volume.