Blood Type Lab Purpose: To test for blood types using antibodies. Hypothesis: We will be able to successfully determine blood types using antibodies. Materials: Test Trays, 4 blood samples, antibodies A and B, and a tooth pick. Procedure: 1) Put a drop of the blood sample in the testing trays. 2) put a drop of antibodies A in one sample and Antibodies B in the other sample of blood. 3) mix it with a tooth pick. 4) observe what you saw. Observation: Jane Wiley John David Discussion: She is blood type A because when we mix antibodies A with the blood sample it started to clump because the antibodies A found the antigens A in the blood cell. He is blood type B because when we mix antibodies B with the blood sample started to clump, therefore the antibodies B found the antigens B in the blood cell. He is blood type O because neither antibodies A nor B found antigens in the blood cell. He is blood type AB because the antibodies A and B found the antigens A and B on the blood cell. Question 1: Explain the difference between a test where the blood clumps and one that doesn’t. A test where the blood clumps is when the antibodies find the antigens on the blood cell and a test where it doesn’t clump is because the antibodies didn’t find the antigens on the blood cell. Question 2: Wiley is bleeding horribly. He and his buddies happen to have blood transfusion equipment and are stranded on the moon (no hospital nearby). His buddies need to give as much blood as possible. But each can only give 1L of blood. How much blood can they give him? Wiley`s friend John is the only one who can give him blood because John is blood type O. He can give Wiley blood because blood type O has no antigens on the blood cell and can be given to anybody. Question 4: Answer the blood typing game Pink hair dude Old dude Red head Conclusion: He is blood type A+ because the antibodies found the antigens on the blood cell. He will be given A+, A-, O+ and OHe is blood type O because there are no antigens on the blood cell. He will be given O+ and O-. She is blood type AB because the antibodies found the antigens A and B. She will be given AB+, AB-, A-, B- and O-. We discovered the different blood types for Jane, John, Wiley and David.