Blood Cells

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  • Created by: Sophie
  • Created on: 15-04-13 13:25

Red Blood Cells:

  • made in bone marrow
  • before entering bloodstream, nucleus breaks down so they are biconcave disc shaped
  • this happens so there is more room for haemoglobin
  • oxygen diffuses from alveoli to red blood cells
  • they have a large surface area to volume so diffusion reaches haemoglobin easily

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