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Passive Transport: Concentration Gradient and Diffusion
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Passive Transport: Concentration Gradient and Diffusion

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Questions and Answers

Which of the following types of transport relies on channel proteins like aquaporins?

  • Exocytosis
  • Facilitated diffusion (correct)
  • Endocytosis
  • Active transport

    • How does the rate of osmosis change with the steepness of the concentration gradient?

  • Remains constant regardless of gradient steepness
  • Reverses direction with a steeper gradient
  • Decreases with a steeper gradient
  • Increases with a steeper gradient (correct)

    • Which type of solution would cause plasmolysis in plant cells?

  • Hypotonic solution
  • Isotonic solution
  • Hypertonic solution (correct)
  • None of the above

    • What happens to a cell placed in a hypotonic solution?

    <p>Cell bursts</p> Signup and view all the answers

    How does an increase in carrier protein saturation affect the rate of facilitated diffusion?

    <p>Decreases the rate of diffusion</p> Signup and view all the answers

    In a lab demo using a dialysis bag with starch and iodine, what color change indicates the presence of starch?

    <p>Purple-black</p> Signup and view all the answers

    Which process is affected by whether gated channels are open or closed?

    <p>Facilitated diffusion</p> Signup and view all the answers

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