Q.
There are three cells. Cell P has water potential of -20 atm, water potential of cell Q is -18 atm and the water potential of cell R is -18 atm. The direction of water flow is:
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a
P→Q→R
b
Q→P→R
c
Q→P←R
d
R→Q←P
answer is C.
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Detailed Solution
Water flows from region of higher water potential to a region of lower water potential. Therefore, water flows from cell R to cell P and water will also flow from cell Q to cell P.
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