Dissolved substances

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  • Created by: Busayoxo
  • Created on: 19-12-15 19:41

1. What is the definition diffusion?

  • The release of energy from glucose
  • The net movement of molecules from a region of high concentration to a low concentration across a partially permeable membrane down a concentration gradient
  • The net movement of molecules across a concentration gradient down a cell membrane
  • The net movement of molecules from a region of low concentration to a high concentration across a partially permeable membrane down a concentration gradient
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Other questions in this quiz

2. When does diffusion happen?

  • When particles vibrate
  • When particles have become less dense
  • When particles are free to move
  • When particles lose charge

3. How do dissolved substances move into and out of cells?

  • Through Diffusion
  • Through Mitosis
  • Through Meisos
  • Through Respiration

4. What factor does NOT affect the rate of diffusion?

  • Concentration gradient
  • Distance particles have to travel
  • Light
  • Temperature

5. What does partially permeable membrane mean?

  • A membrane that allows small particles pass through it
  • A membrane which is very large
  • A membrane that allows large particles pass through it
  • A membrane which is very small

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