Red blood cells

• Adaptations of a red blood cell include

  • no nucleus
  • biconcave shape
  • haemoglobin
  • flexibility
• In red blood cells there isn't any nucleus to allow for more oxygen to be carried.
• The biconcave shape of a red blood cell increases the surface area for gas exchange to occur.
• Red blood cells contain haemoglobin in order to bind with oxygen to allow it to travel around the body.
• Red blood cells are flexible in order to fit through narrow blood capillaries.