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Hydraulic Engineering in Plants

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Questions and Answers

What does the solute potential (Ψs) represent in the water potential equation?

The osmotic potential (correct)

The gravity potential

The pressure potential

The matric potential

Why does solute concentration affect water movement in plants?

It has no influence on the water potential

It increases the pressure potential

It decreases the matric potential

It reduces the solute potential (correct)

Which component of the water potential equation has a typical value of -0.5 to -1.0 MPa for cell cytoplasm?

Osmotic potential (correct)

Matric potential

Gravity potential

Pressure potential

Which statement accurately describes the effect of solutes on water potential?

Solutes lower osmotic potential Signup and view all the answers

How do solutes affect the availability of potential energy in an aqueous system?

They reduce the available energy Signup and view all the answers

What is the role of water potential in plant physiology?

Evaluate the energy between two water systems Signup and view all the answers

How is water potential expressed in terms of units?

Megapascals Signup and view all the answers

Why is the water potential of pure water designated a value of zero?

For convenience of definition Signup and view all the answers

Which factors influence the water potential in plant solutions?

Solute concentration and pressure Signup and view all the answers

In plant physiology, what does ψwpure H2O represent?

The potential energy in pure water Signup and view all the answers

How do plants utilize hydraulics to move water to great heights in trees?

By creating pressure differentials within their vascular system Signup and view all the answers