Cellular Transport Quiz
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Questions and Answers

Which of the following best describes diffusion?

  • The movement of water molecules across a membrane
  • The diffusion of glucose molecules into a cell
  • The net movement of particles from an area of higher concentration to an area of lower concentration (correct)
  • The movement of particles from an area of lower concentration to an area of higher concentration

    • What is osmosis?

  • The diffusion of water molecules (correct)
  • The movement of particles from an area of lower water concentration to an area of higher water concentration
  • The movement of glucose molecules across a membrane
  • The movement of particles from an area of higher concentration to an area of lower concentration

    • What is the relationship between diffusion and osmosis?

  • Diffusion and osmosis are unrelated processes
  • Osmosis is the opposite of diffusion
  • Diffusion is a type of osmosis
  • Osmosis is a type of diffusion (correct)

    • What does the term 'water concentration' refer to in the context of osmosis?

    <p>The concentration of water molecules in a solution</p> Signup and view all the answers

    Why is osmosis considered a special case of diffusion?

    <p>Osmosis involves the movement of water molecules</p> Signup and view all the answers

    Study Notes

    Diffusion and Osmosis

    • Diffusion is the random movement of molecules from an area of higher concentration to an area of lower concentration, resulting in uniform distribution.
    • Osmosis is the movement of water molecules from an area of higher concentration to an area of lower concentration through a selectively permeable membrane.
    • Diffusion and osmosis are related, as osmosis is a special case of diffusion that involves the movement of water molecules.
    • Water concentration refers to the amount of dissolved substances in a solution, with a higher concentration indicating more dissolved substances and a lower concentration indicating fewer dissolved substances.
    • Osmosis is considered a special case of diffusion because it involves the movement of water molecules only, whereas diffusion involves the movement of any molecule or ion.

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    Description

    Test your knowledge of osmosis, water concentration, and diffusion in cells with this quiz. Brush up on the basics and see how well you understand these concepts.

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