What are the components of blood?

The main components of blood are

(i) Red blood cells (RBCs): Red blood cells are the most abundant cells in the blood. These cells contain a red pigment called haemoglobin. It is the haemoglobin which carries oxygen and transports it to all parts of the body.

(ii) White blood cells (WBCs): WBCs are colourless cells without haemoglobin. They fight against infections and protect the body from foreign particles such as germs and bacteria.

(iii) Platelets: Platelets are the smallest cells in the blood. The main function of platelet is to prevent bleeding.