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Why the B antibody on donor blood group A does not atack the A antigen of the AB recipient?
Although you donate all of your blood components, only the red cells are given to someone who doesn't have your exact blood type.
B type whole blood will only be given to B. An AB recipient will only get red cells and no plasma so the antibodies in the plasma can not attack the antigens on the red blood cell surface.
What else can I help you with?
What is meant by unexpected antibody in human blood?
An unexpected antibody in human blood means that a person does not have the antigen required to make a certain antibody because it is foreign to them. Unexpected antibodies are usually alloantibodies.
Will the B antibody in the plasma donor blood group A agglutinate the A antigen of the AB recipient and Why?
Yes. A person with blood group antibody B can not donate blood to another person with group A because it will agglutinates as they blood group A can only be donated to to a person with blood group A. Even though you donate whole blood, all of it is not given unless you both have the exact blood type. A person with A type (who has B antibodies in their plasma) will only donate their cells. No antibodies will be given. So AB can be given A but without the plasma which has the antibodies.
What molecule is connected to the surface of pathogens?
An antigen is a molecule that is located on viruses, bacteria, cancer cells, and other pathogens. An antigen is very specific to each pathogen. A flu antigen is different from a pneumonia antigen, and an HIV antigen is different from a measles antigen. I like to think of an antigen as a lock, understanding that all locks are different and very specific. The key that fits these antigen locks is called an antibody. Antibodiesare found on certain types of white blood cells that our body produces. Antibody-producing white blood cells are called lymphocytes. Lymphocytes travel around our body and attach antibodies to pathogen antigens. Once an antigen has an antibody attached to it, phagocytes attack the pathogen, engulf it, and kill it. Sometimes the antibody disables the pathogen so that it cannot reproduce or release toxins.SourceBYU Course BIOL 049 Lesson 3
Describe the antibody antigen interactions that would occur if an Rh- perosn with type B blood received blood from an Rh person with type AB blood?
The Rh- person has no Rh antigens, so their body does not recognize the Rh antigens on the Rh+ donor blood as foreign. However, the B antigens on the donor blood are recognized by the recipient's immune system as foreign, leading to an immune response against the B antigens. This can result in a transfusion reaction if not properly managed.
What is the basic principle of blood transfusion?
Blood type A have antigen A and anti- body B Blood type B have antigen B and anti- body A Blood type AB have antigens A and B and no anti- body Blood type O do not have antigen but have anti- bodies A and B
Why the A antibody of the AB recipient does not atack the donor A antigen on blood?
Having AB blood means you already have both A and B antigens in your organisms, so you DON'T have the antibodies, the A antigen doesn't affect the AB recipient 'cause it doesn't consider it as foreign (it's the same for the B antigen)
What blood has antigen but without antibody?
Surface antigen
If the anti-A antibody causes blood to coagulate which antigen would be present on the red blood cells?
a
What happence when an antigen on a red blood cell comes in contact with the antibody designed to seek it out?
The antibody is killed off, and the antigen spreads
What is formed in the blood to fight invading antigens?
Antibody is a protein made in response to a specific antigen. The antibody attaches to the antigen and makes it useless.
Blood test to identify antigen-antibody reactions?
IMMUNOGLOBULINS
What antibodies and antigens are in type A plus blood?
Basically, Group A Rh (D) +ve blood type has antigen A and antibody B
Why can type O blood be donated to anyone?
It contains neither A antigen nor B antigen. their blood can be given to individuals of any other blood group red cells do not carry either A or B antigen and hence they do not react with their corresponding antibodies. Remember that an immune respond can only be trigger when the antigen is present in the blood. In another word the blood originally have no any antibody but upon antigen contact it will trigger the immune respond thus antibody is produced and agglutination of blood occur. for rhesus factor there are memory cell so the antibody is still present. That is why when an O blood group without any antigen and antibody (it have both antibody but it is not create yet as there is nothing to trigger its immune respond) can donate to AB group which has no antibody (which mean it will not be trigger by any blood group) but have both antigen (remember that all donated blood have no antibody as there is no immune respond to trigger it thus the AB blood with both antigen is fine; except rhesus factor if it have memory cell)
What is precipitin?
Precipitin-- An antibody in blood that combines with an antigen to form a solid that separates from the rest of the blood
What is the blood component filtered out by the spleen?
the aged red blood cells and antigen-antibody complex
What is hepatitis virus tests?
These tests are based primarily on antigen-antibody reactions--an antigen being a protein foreign to the body, and an antibody another type of protein manufactured by lymphocytes (a type of white blood cell) to neutralize the antigen.
What is the antibody of the antigen AB?
Type AB blood doed not contain any antibodies. I does have Antigens A and B.
