Transport in Plants — BIO BOTANY STD 11 — Question
Tamilnadu BoardEnglish MediumSTD 11BIO BOTANYTransport in Plants3 Marks
Question
Explain osmotic potential.
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Answer
Solute potential, otherwise known as osmotic potential denotes the effect of dissolved solute on water potential. In pure water, the addition of solute reduces its free energy and lowers the water potential value from zero to negative. Thus the value of solute potential is always negative. In a solution at standard atmospheric pressure, water potential is always equal to solute potential $\left(\Psi_{ w }=\Psi_{ s }\right)$.
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