Human Blood Cell Typing Why do blood types matter Why? Anomaisista Internal cuvinte rhandy is life function ng when foreign cells or other potentially harmful substances are in the body is one way to pre damage and fight off infection by pathens Humanod blood cells have a system for being recognized so that cells that belong in the body are kept safe while cells that do not belong can be destroyed. Model 1 – Red Blood Cells and Antibodies Person with Person with Blood Type A Blood Type B Person with Blood Type AB Person with Blood Type O Cell with attached antigen GAB) Antibody produced V None Anti-B Anti-A Anti- Anti- Cells in the presence of anti-A antibody OY Cells in the presence of anti-B antibody 1. Blood types in the human population are characterized by the presence or absence of antigens on the surface of the red blood cells. 4. According to Model 1, how many blood types are found in the human population? 6. What shape is used in Model 1 to represent an A antigen? What distinguishes a type A red blood cell from a type B red blood cell? man Blood Cell Typing Whar distinguishes a type A red blood cell from a type o red blood cell? 2 Refer to the antibodies shown in Model I. How many different types of antibodies are shown? & Draw the antibody that is produced by a person with type A blood. c Which antigen would these antibodies fit? 3. Model I illustrates what happens when red blood cells are in the presence of the two antibodies. Write a description with your group that explains the complementary relationships between antigens and antibodies. 4. Refer to the second part of Model I that illustrates what happens when blood types are mixed. What happens to red blood cells when they are mixed with complementary antibodies? STOP 5. The term agglutination is used to describe what happens to red blood cells when incompatible blood types are mixed. 4. Define agglutination according to Model 1. 6. What adverse effects might agglutinated red blood cells have on the body as they travel through veins, arteries, and capillaries?