State four ways in which the red blood cells are adapted to their function

  • Biconcave shaped to provide a large surface area for absorption of oxygen/carbon (IV) oxide
  • Absence of nucleus hence more haemoglibin to carry sufficient oxygen/carbon (IV) oxide
  • Alter shape to enable to pass through the narrow lumen of capillaries to supply oxygen/ remove carbon (IV) oxide
  • Have haemoglobin with high affinity for oxygen/carbon (IV) oxide/uptake of more oxygen/carbon (IV) oxide.
  • RBC are many/numerous to carry more oxygen/carbon (IV) oxide
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