Biology Isa

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  • Created by: Cheese
  • Created on: 03-12-12 14:46

Number of discs effects concentration of pigment:

  • as the number of dics increases the concentration of the pigment increases (use data and graph)


  • increase rate of Diffusion
  • the tonoplaast cell surface membrane needs to be destroyed
  • partially permeable membrane
  • gain kinetic energy ith temp

Limitations and Effect 

  • replicates -- not possible to see if results are reliable
  • Discs not left long enough -- underestimate of pigment released
  • same beetroot of region of beetroot not used --different material contains diferent amount of pigment to release
  • Difficult to match…


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