Distinct molecules called agglutinogens ( type A blood cells) are attached to the surface of red blood cells. There are two different types of agglutinogens, type “A” and type “B”. Each type has different properties. The ABO blood type classification system uses the presence or absence of these molecules to categorize blood into four types.
Another level of specificity is added to blood type by examining the presence or absence of the Rh protein. Each blood type is either positive “+” (has the Rh protein) or negative “-” (no Rh protein). For example, a person whose blood type is “A positive” (A +), has both type A and Rh proteins on the surface of their red blood cells.
When conducting a blood transfusion, it is important to carefully match the donor and recipient blood types. If the donor blood cells have surface molecules that are different from those of the recipient, antibodies in the recipient’s blood recognize the donor blood as foreign. This triggers an immune response resulting in blood clotting. If the donor blood cells have surface molecules that are the same as those of the recipient, the recipient’s body will not see them as foreign and will not mount an immune response.
QUESTIONS::::::
1) what would happen if the blood donors blood types do not match each other??
2)what is the RH factor? why is it significant?
3) how many different blood types are there and name them all.
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1. If a persons blood type doesn't match the donors, a reaction can occur. This can result in kidney failure, shock and in some cases death.
ReplyDelete2. The one blood type that can be distributed to anyone is O.
3. There are eight types of blood. They are as follows, O+,O-,A+,A-,B-,B+AB+, and AB-.
1. If the donor blood cells have surface molecules that are different from those of the recipient, antibodies in the recipient’s blood recognize the donor blood as foreign. This triggers an immune response resulting in blood clotting.
ReplyDelete2. The Single blood type that can be distributed to anyone is blood type O
3. There are eight different blood types. They are A+,A-,B+,B-,O+,O-,AB+,and AB-.
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ReplyDelete1. The antibodies interfere with each other and can cause clotting. Blood clots could lead to heart attack or stroke, and could cause death.
ReplyDelete2. The RH factor is whether the blood type is positive or negative and it's found on the red blood cells. It can cause problems with health.
3. A+, A-, B+, B-, AB+, AB-, O+ and O-, which makes eight.