Exchange of materials GCSE Biology AQA (higher)

I have made 45 questions on practically every sentence in this topic of the AQA revision guide.
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1. What is "osmosis"?

  • movement of molecules through a partially permeable membrane involving energy
  • free movement of cells through a partially permeable membrane.
  • free movement of water molecules through a partially permeable membrane.
  • free movement of molecules through a partially permeable membrane
1 of 45

Other questions in this quiz

2. What is "diffusion"?

  • free movement of molecules down a concentration gradient.
  • movement of molecules through a partially permeable membrane involving energy
  • free movement of cells through a partially permeable membrane.
  • free movement of water molecules through a partially permeable membrane.

3. Diffusion involves the movement of substances from ..........................

  • a high concentration to a low concentration
  • a low concentration to a high concentration

4. What is "active transport"?

  • free movement of water molecules through a partially permeable membrane.
  • movement of molecules through a partially permeable membrane involving energy
  • free movement of molecules through a partially permeable membrane
  • free movement of cells through a partially permeable membrane.

5. Osmosis involves the movement of water molecules from ..........................

  • a high concentration to a low concentration
  • a low concentration to a high concentration

Comments

Jimmy Boy

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good quiz, thanks :)

Swallowtail

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A useful little quiz that contains questions suited to AQA biology on gaseous exchange and absorption.  This topic is also found in specifications. Quizzes are useful to test your understanding after you have revised a topic or to show you which areas need more thorough revision.

Thiara Roops

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Where does the nitric oxide diffuse into......it doesn't.  

I smiled at that. 

Eloise.Littlewood

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The definition of diffusion is wrong, it says "down a concentration gradient" which is for active transport:

Active transport is the movement of dissolved molecules into or out of a cell through the cell membrane, from a region of lower concentration to a region of higher concentration. The particles move against the concentration gradient , using energy released during respiration.

Diffusion is actually:

Diffusion is the movement of a substance from an area of high concentration to an area of low concentration.

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