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Antibodies.
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∙ 14y ago
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What is an anticalin?
An anticalin is any of a class of artificial proteins which are able to bind to antigens.
A persons blood type depends on the presence or absence of certain proteins called?
A & B antigens on the surface of the read blood cells
What do the antibody proteins do?
They bind to antigens, which can be either proteins, carbohydrates, or proteins decorated with attached carbohydrates. This allows the immune system to recognize infectious organisms and parasites so it can prepare to fight them.
Proteins on the outside of the aids virus bind to what?
proteins on the surface of red blood cells
Is blood typed based on the proteins fund in the plasma?
Blood type is based on the antigens found on the surface of the red blood cells. It's not based on proteins found in plasma.
How do drug blood tests work?
Im guessing that the testing medium contains antigens which bind to a receptor only present on the drug in question, or a range of drugs with a range of antigens.
Does Type B blood have A antigens?
No, type B blood does not have A antigens. Type B blood has B antigens.
Do the formed elements of blood include defense proteins?
Formed elements of blood do not include the defense proteins known as antigens. The formed elements of blood are red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).
What kind of anigen does type o blood have?
Type O blood does not have any antigens. This is the reason for O blood's universal donnor status. Since no antigens (proteins or polysaccharides) are present, they will no react negatively to any antibodies that other blood types possess.
How is blood type o a universal doner?
There are 4 blood types (A, AB, B, and O) excluding the pos or neg aspect, which are all based on the Antigens on the surface of the Red Blood Cells (RBCs). These antigens are what Antiboies detect and bind to and, because antibodies each bind two antigens, they join up all the cells making massive structures that cannot flow through the blood and cause clots. So for example the A antigen will be detected by the anti-A antibody and cause the clott to be forlmed. For this reason we do not have in our systems the antibodies capable of dececting our own antigens, so if you have A antigens (type A blood) you will have only anti-B antibodies and vice versa. If you have both A and B antigens (AB blood) you will have neither anti-A nor ant-B antibodies. If you have no antigens (type O blood) you will have both the anti-A and anti-B antibodies. Recieving donor blood which as antigens to which your own antibodies will be atracted will mean that the blood you receive is clotted up. For exampl is a type A (has anti-B antibodies) receives type B blood (has B antigens) then the antibodies will bind the donor cells. However if a type AB (no antibodies) receives any sort of donor blood it will accept it freely as there are no antibodies tobind any antigens. This is why AB type is known as the Universal Reciever, as it can receive blood from any blood type donor. So if a type O (with both antibodies) receives A type or B type or AB type donor blood then it has antibodies that will bind any of them causing a clot. However O type blood also has no antigens on it RBCs so no matter what antibodies are present the cells will not be bound. This means tha O type donor blood can be put into any resipient without feer the recipients antibodies will bind the cells, and thus O type blood is known as the Universal Donor.
List and describe 4 ways antibodies aid in immunity?
There are four types of antibodies that aid in immunity. The Lysins bind the antigens therefore causing them to disintegrate. The Agglutinins bind the antigens causing the micro-organisms to clump together. The Antitoxins bind the toxins therefore making them harmless to the body. The Opsonins bind the antigens on the outer surface.
The group of proteins that normally circulate in the blood in an inactive form and are activated by contact with nonspecific antigens such as foreign blood cells or bacteria?
complement
