Blood (B3)

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  • Created by: caits
  • Created on: 22-03-14 10:29

Red Blood Cells:

Each red blood cell has a large surface area compared to its volume. This means that a lot of oxygen can diffuse through the outer surface and into the cell. They are bioncave discs which increases the surface area. Also before leaving the bone marrow where the cell is made, the nucleus breaks down leaving more room for haemoglobin. 

Oxygen in the…


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