Question

What are the components of blood?

Answer 1

1. The main components of blood are -
   1. plasma
   2. blood cells (Red blood corpuscles):
      • Plasma is the fluid part of blood in which the blood cells are suspended. The plasma contains water, minerals, nutrients, proteins, etc.
2. Blood cells are of three types -
   1. RBCs (Red blood cells),
   2. WBCs (White blood cells) 
   3. blood platelets.

Answer 2

There are four components of blood:

• Plasma is a liquid part of blood which is yellowish in colour and contains 90% water. It contains food, enzymes, wastes proteins etc.
• Red blood cells are disc-shaped cells containing red-coloured pigment called haemoglobin in it. Haemoglobin helps in the transportation of oxygen.
• White blood cells are the fighting cells which protect us against bacteria and foreign materials causing infections.
• Platelets help in clotting of the blood.