TEACHING-Blood Grouping

Blood is made up of red blood cells, white blood cells and platelets in a liquid called plasma. Your blood group is identified by antibodies and antigens in the blood.
Antibodies are proteins found in plasma. They're part of your body's natural defences. They recognise foreign substances, such as germs, and alert your immune system, which destroys them.Antigens are protein molecules found on the surface of red blood cells.
Taught blood grouping for level 2 class.