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?

<p>Solutes lower osmotic potential (C)</p> Signup and view all the answers

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

<p>They reduce the available energy (C)</p> Signup and view all the answers

What is the role of water potential in plant physiology?

<p>Evaluate the energy between two water systems (B)</p> Signup and view all the answers

How is water potential expressed in terms of units?

<p>Megapascals (B)</p> Signup and view all the answers

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

<p>For convenience of definition (B)</p> Signup and view all the answers

Which factors influence the water potential in plant solutions?

<p>Solute concentration and pressure (C)</p> Signup and view all the answers

In plant physiology, what does ψwpure H2O represent?

<p>The potential energy in pure water (C)</p> Signup and view all the answers

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

<p>By creating pressure differentials within their vascular system (B)</p> Signup and view all the answers

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