AS Biology Topic 2.5

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  • Created by: TobyHill5
  • Created on: 28-04-18 14:53

1. Water Potential

  • a measure of the tendency of water molecules to diffuse from one region to another
  • the concentration of water molecules in a solution
  • the diffusion of water molecules from an area of high concentration to an area of low concentration
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2. hypotonic solution

  • a solution where the concentration of solutes is the same inside and outside of the cell
  • a solution where the concentration of solute molecule is greater inside the cell than outside
  • a solution where the concentration of solute molecule is greater outside the cell than inside

3. In endocytosis, the plasma membrane surrounds and encloses the particle

  • true
  • false

4. O2 travels across membranes via..........

  • facilitated diffusion (carrier)
  • simple diffusion
  • facilitated diffusion (channel)

5. In pure water, the water potential inside the cell is...........than the surroundings

  • lower
  • higher

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