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Agriculture · Q322

Plant Pathology

Graduate and Post Graduate · Agriculture · question 322

Q322

Amount by which water potential is reduced due to presence of solute is called

A.
Solute potential
Answer
B.
Matric potential
C.
Pressure potential
D.
None of these

Answer: Option A

Solution

Answer: Option A
Solution:
The amount by which water potential is reduced due to the presence of solute is called Solute potential.
Solute potential (Ψs), also called osmotic potential, is negative in a plant cell and zero in distilled water. Solutes reduce water potential by consuming some of the potential energy available in the water.
Solute potential (Ψs) decreases with increasing solute concentration; a decrease in Ψs causes a decrease in the total water potential.