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At atmospheric pressure, the water potential is equal to_________

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in Biology – Class 11 by (272k points)
At atmospheric pressure, the water potential is equal to_________

(a) Gravitational potential

(b) Pressure potential

(c) Solute potential

(d) Matrix potential

I got this question in final exam.

The doubt is from Plant-Water Relations-2 in portion Transport in Plants of Biology – Class 11

1 Answer

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Correct option is (c) Solute potential

Easy explanation: For a solution at atmospheric pressure, the water potential is equal to solute potential. Gravitational potential and matrix potential are of negligible importance. Pressure potential is responsible for creating tension in the xylem which leads to water transport up a stem.

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