Blood Consists of Plasma (fluid) RBC, WBC and Platelets. Plasma is a liquid mainly contains Water. RBC means red blood cells which contains Haemoglobin a red pigment which gives red colour to blood and binds with oxygen and transports it to all parts of the body cells. WBC means white blood cells which fight against germs that may enter our body Platelets are the types of cells present in the blood which help in clotting of blood.