Biology Questions and Answers
Blood Types
- What are the main human
blood group systems?
In humans the main blood group
systemssystem an are the ABO d the MN system.system, the Rh
- Why is the determination of
the blood types of the donor
and of the recipient important
in transfusions?
Red blood cells have different antigin the outer surface of their plasmaens
membrane; for example, the antigens A
and B of the ABO system arglycoproteins of the membrane. If ae (^)
donor has red blood cells with antigens
not present in the red blood cells ofrecipient (lacking of transfusion the
compatibility) the immune system of the
recipient recognizes tactual antigens (i.e., foreignhese molecul es as
substances) and triggers a defense
response producing specific antibagainst those antigens. The transfodiesused (^)
red blood cells then are destroyed by
these antibodiindividual may even die.es and the recipient
- What are the antigens and
the respective antibodies of
the ABO blood group system?
The ABO blood system includes theerythrocyticbe attacked by the antibodi antigens A and B that canes anti-A and (^)
anti-B.
The antigens A anand the antibodies anti-A and anti-Bd B are agglutinogens are (^)
agglutinins.
- What are the blood types of
the ABO blood system?
The blood types of the ABO blsystem are the type A, the type B, theood (^)
type AB and the type O.
- What are the antigens and
antibodies of each blood type
of the ABO blood system?
Type A: antigen A, antibody anti-B.
Type B: antigen B, aType AB: antigens A and B, does notntibody anti-A. (^)
produce antibody A neither antibody B.
Type O: does not have antigen A neitherantigen B, has antibodies anti-A and
anti-B.
(Obviously antibodilymphocytes not by red blood cells.)es are made by B
- What is the logic of the
transfusional compatibility
concerning the ABO blood
group system?
The transfusional comABO system takes into patibilityaccount th for thee
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