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What is the technical definition of water potential 'Ψ'?
What is the technical definition of water potential 'Ψ'?
- The difference between the chemical potential of water in the system and the chemical potential of pure water under standard temp. and pressure (correct)
- The measure of the concentration of solutes in a solution
- The pressure exerted by water in a system
- The tendency of water molecules to move from a region of high kinetic energy to a region of low kinetic energy
What is the solute potential 'Ψs' in a solution?
What is the solute potential 'Ψs' in a solution?
- The measure of the concentration of water molecules in the solution
- The change in the Ψ value due to the contribution of dissolved solutes (correct)
- The tendency of solute molecules to move from a region of low concentration to a region of high concentration
- The pressure exerted by the dissolved solutes in the solution
What happens to the water potential 'Ψ' when solutes are added to pure water?
What happens to the water potential 'Ψ' when solutes are added to pure water?
- The Ψ value will remain unchanged
- The Ψ value will drop and become negative (correct)
- The Ψ value will increase proportionally to the amount of solutes added
- The Ψ value will become zero
In a solution, when does Ψ equal Ψs?
In a solution, when does Ψ equal Ψs?
What happens to the water potential 'Ψ' when a plant cell is placed into pure water?
What happens to the water potential 'Ψ' when a plant cell is placed into pure water?
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