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

What is the driving force behind osmosis?

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

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