The Blood
- Created by: madlil03
- Created on: 15-02-19 17:06
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- The Blood
- Red Blood Cells
- No nucleus- more space to pack in haemoglobin
- Red pigment- haemoglobin- carry oxygen
- Shape: biconcave discs
- In lungs: haemoglobin+oxygen
- Pick up oxygen from the lungs
- Large surface area to volume ratio- diffusion of oxygen can take place
- White Blood Cells
- Bigger than Red Blood Cells and fewer of them
- Have a nucleus
- Others digest invading bacteria/virus
- Parts of body's defence system
- Platelets
- Helps produce a network of protein threads
- Small fragments of cells, no nucleus
- Helps blood to clot
- Clot dries and hardens to form a scab
- Threads capture lots of red blood cells and more platelets to form a jelly like clot
- Scab protects new skin as it grows and stops bacteria getting in your body
- Plasma
- Red & White blood cells, Platelets, hormones, antibodies/antitoxins
- Carries everything in the blood
- Nutrients like glucose, amino acids, C02 from organs to lungs, urea from liver and kidney
- Transport medium- yellow liquid
- Red Blood Cells
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