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Q.

You are given three cells : a root hair, a cell of the inner cortical layer and a cell of the mesophyll. Arrange them in ascending order of their DPD

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a

Root hair < Mesophyll < Cortical cell

b

Root hair < Cortical cell < Mesophyl

c

Cortical cell < Mesophyll < Root hair

d

Mesophyll < Root hair < Cortical cell

answer is A.

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Detailed Solution

DPD is the diffusion pressure development as a result of addition of solute is referred to as diffusion pressure deficit. Therefor water moves from low DPD to high DPD. Hence ascending order of their DPD are Root hair < Cortical cell < Mesophyll.

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You are given three cells : a root hair, a cell of the inner cortical layer and a cell of the mesophyll. Arrange them in ascending order of their DPD