Question

What are the components of blood? [2 marks]

Answer 1

• Blood has two important components, the fluid component and the cellular component. (0.5 marks)
• The fluid component is called plasma which constitutes 55% of total blood volume. (0.5 marks)
• The cellular components comprises of RBCs, WBCs and platelets. (0.5 marks)
• RBCs are responsible for transport of oxygen, WBCs help in fighting germs and platelets help in clotting of blood to prevent excessive bleeding. (0.5 marks)