Question

Why is a person with blood group O called a universal donor and a person with blood group AB called a universal recipient?

Answer 1

ABO blood groups:-

1. Antigens are proteins present on the surface of RBCs while antibodies are present in the plasma.
2. There are two types of antigens A and B and two types of antibodies - A and B.
3. Based on the presence or absence of specific antigens, the human blood is classified into four groups, namely A, B, AB, and O.
4. Blood group A has antigen A and antibody B.
5. Blood group B has antigen B and antibody A.
6. Blood group AB has both antigens but no antibodies.
7. Blood group O has neither antigen A nor B but both antibodies A and B.
8. Blood group O is called the universal donor since it can be given to a person with any blood group.
9. Blood group AB is called the universal recipient since it can receive blood from a person with any blood group.