what is the shape of human red cell and advantage does it have for this shape
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The cell is flexible and assumes a bell shape as it passes through extremely small blood vessels. It is covered with a membrane composed of lipids and proteins, lacks a nucleus, and contains hemoglobin—a red iron-rich protein that binds oxygen. did you know?
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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 hemoglobin - a red protein that combines with oxygen
- they have no nucleus so they can contain more hemoglobin
- they are small and flexible so that they can fit through narrow blood vessels
- they have a biconcave shape (flattened disc shape) to maximize their surface area for oxygen absorption
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