Red blood cells adaptations?
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Answer and Explanation:
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 with oxygen.
- They have no nucleus so they can contain more haemoglobin.
- They are small and flexible so that they can fit through narrow blood vessels.
- They have a biconcave shape (flattened disc shape) to maximise their surface area for oxygen absorption.
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