WAEC - Biology (2024 - No. 41)
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
설명
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.