Water Uptake by Roots
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Questions and Answers

What drives the movement of water into the root hairs?

  • Diffusion
  • Osmosis (correct)
  • Capillary action
  • Active transport

    • What happens to the water potential of cell sap as water is absorbed by root hairs?

  • It increases (correct)
  • It decreases
  • It fluctuates unpredictably
  • It remains constant

    • Which statement is true regarding the tonoplast?

  • It is the same as the root hair membrane.
  • It is involved in the absorption of nutrients.
  • It is impermeable to all substances.
  • It surrounds the vacuole and is selectively permeable. (correct)

    • What is the result of the increased turgor pressure in plant cells from water uptake?

    <p>It promotes cell elongation and growth.</p> Signup and view all the answers

    In terms of water potential (Ψ), where does water move from and to during the uptake process?

    <p>From high Ψ to low Ψ</p> Signup and view all the answers

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