Selective Permeability and Osmosis Quiz
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Questions and Answers

Which phenomenon controls the passage of substances through plasma membranes?

  • Active transport
  • Selective permeability (correct)
  • Diffusion
  • Osmosis

    • What is the process of water movement through semi-permeable membranes called?

  • Selective permeability
  • Osmosis (correct)
  • Diffusion
  • Active transport

    • Which substances are allowed to pass freely through plasma membranes?

  • Only water
  • Only salts
  • Some substances (correct)
  • All substances

    • What is the driving force behind osmosis?

    <p>Low concentration of water molecules</p> Signup and view all the answers

    Which direction does water move in osmosis?

    <p>From a medium with high concentration of water molecules to another one with low concentration of water molecules</p> Signup and view all the answers

    What is the role of semi-permeable membranes in osmosis?

    <p>They allow the passage of water molecules but not solute molecules</p> Signup and view all the answers

    What is the driving force behind osmosis?

    <p>Difference in water concentration</p> Signup and view all the answers

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