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Standard VIII

Biology

Diffusion

At atmospheri...

Question

At atmospheric pressure, for the movement of water among the adjoining cells A, B and C as represented below, which values of solute potentials $(ψ_{s})$ would be correct?

ψ_{s} (A) = - 6 b a r, ψ s (B) = - 8 b a r, ψ_{s} (C) = - 2 b a r

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ψ_{s} (A) = - 8 b a r, ψ s (B) = - 3 b a r, ψ s (C) = - 2 b a r

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ψ_{s} (A) = 4 b a r, ψ s (B) = - 2 b a r, ψ s (C) = - 1 b a r

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ψ_{s} (A) = - 1 b a r, ψ s (B) = 2 b a r, ψ_{s} (C) = 5 b a r

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Solution

The correct option is B $ψ_{s} (A) = - 8 b a r, ψ s (B) = - 3 b a r, ψ s (C) = - 2 b a r$

At atmospheric pressure, the water potential $(ψ_{w})$ of a solution is equal to the solute potential $(ψ_{s})$ of that solution. Movement of water occurs from its high water potential to its low water potential. Hence, correct option is b.

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At atmospheric pressure, for the movement of water among the adjoining cells A, B and C as represented below, which values of solute potentials (ψs) would be correct?

At atmospheric pressure, for the movement of water among the adjoining cells A, B and C as represented below, which values of solute potentials $(ψ_{s})$ would be correct?