Which of the following statements is correct about the ABO blood group system?
- Antigens are located on the surface of white blood cells
-
Antibodies are located in the blood plasma
- Antibodies are located on the surface of the red blood cells
- Antigens are located in the blood plasma
The correct answer is: B
Explanation
In the ABO blood group system, antibodies are located in the plasma, which is the liquid part of blood.
- The ABO blood group system is based on the presence of antigens and antibodies in the blood.
- Antigens are protein molecules on the surface of red blood cells.
- Antibodies are proteins in the plasma that recognize foreign substances.