Course Content
TRANSPORT IN PLANTS AND ANIMALS
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EXCRETION AND HOMEOSTASIS
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Biology Form 2
About Lesson

Red Blood cells

They are also known as erythrocytes

They are manufactured in the bone marrow of the short bones like ribs and vertebrae

In infants, they are formed in liver and spleen.

Structure and adaptations of RBCs to their functions

  • Lack nucleus to create more room for haemoglobin oxygen packing.
  • Are circular with a biconcave shape to increase surface area for exchange of gases;
  • Have thin plasma membrane permitting rapid and efficient diffusion of gases
  • Have haemoglobin that has high affinity for O2 to transport oxygen.

 

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