- Created by: Meli3380
- Created on: 17-02-20 16:06
Red blood cell:
- Their job is to carry oxygen from the lungs to all the cells in the body.
- Their shape is biconcave disc, this gives large surface area for absorbing oxygen.
- They don't have a nucleus, this allows more room to carry oxygen.
- They contain a red pigment called haemoglobin.
White blood cell:
- Defend against infections.
- Some can change shape to gobble up unwelcome microorganisms, in…