PLANT PHYSIOLOGY
TRANSPORT IN PLANT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Highest water potential is observed in case of
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Solution in a beaker
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Cell sap
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Pure water solvent
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All of the above
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Explanation:
Detailed explanation-1: -Pure water has the highest concentration of water molecules. Therefore, it has the highest water potential. When some solute is dissolved in water, the water potential of pure water decreases.
Detailed explanation-2: -Hence, pure water has highest water potential. By convention water potential of pure water has been fixed as zero. This means that water potential of any solution will always be negative.
Detailed explanation-3: -The water potential of pure water is zero; aqueous solutions of increasing solute concentration have increasingly negative values. Water tends to move from areas of high water potential (more water, close to 0 value) to areas of low (less water, more solute, neg #’s) water potential.
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