12 Questions
What is water potential?
A measure of the potential energy in water
How is water potential denoted?
Ψ (psi)
What influences the water potential in plant solutions?
Solute concentration and matrix effects
Why is the water potential of pure water designated as zero?
For convenience of definition
In what units is water potential expressed?
Megapascals (MPa)
What allows plants to achieve hydraulic feats like moving water to great heights and splitting rocks?
Water potential and hydraulics
What are the components that make up the total water potential of a system?
Solute, pressure, gravity, and matric potentials
What is the role of solutes in reducing water potential in a plant cell?
Solutes decrease water potential by consuming potential energy
How does solute concentration affect solute potential in a plant cell?
Increasing solute concentration decreases solute potential
In which direction does water move in relation to solute potential gradient?
Towards areas of lower solute potential
What happens to the total water potential when solute potential decreases?
Total water potential decreases
How do solutes affect the available potential energy in an aqueous system?
Solutes decrease the available potential energy
Learn about how plants utilize hydraulics to move water, generate force, and manipulate potential energy. Discover how water potential plays a crucial role in plant physiology.
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