B4.1 - The Blood
- Created by: emmalouise0219
- Created on: 30-11-17 19:49
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Composition of the Blood
Blood transports materials and heat around the body, and helps to protect against disease. It contains:
- Plasma
- Red blood cells
- White blood cells
- Platelets
Red blood cells
Red blood cells transport oxygen for aerobic respiration. They must be able to absorb oxygen in the lungs, pass through narrow blood vessels, and release oxygen to respiring cells.
Red blood cells have adaptations that make them suitable for this:
- they contain haemoglobin - a red protein that combines…
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