Anatomy and Physiology II Practice Test 2026 - Free Anatomy Practice Questions and Study Guide

Question: 1 / 400

A person with type B blood has _____ antigens on the blood cells and _____ antibodies in the plasma.

B antigens, Anti-A antibodies

A person with type B blood has B antigens present on the surface of their red blood cells. This specificity for B antigens defines the blood type. Additionally, the immune system produces antibodies in response to foreign antigens. Since type B blood does not contain A antigens, the body will produce Anti-A antibodies to identify and potentially attack any A antigens that may be introduced, either through blood transfusion or other means.

In contrast, the other options incorrectly describe the relationship between antigens and antibodies. For example, type A blood would have A antigens and Anti-B antibodies, while a lack of antigens would suggest a blood type of O, which is not applicable here. By understanding that blood type determines both the presence of specific antigens and the production of corresponding antibodies, one can better grasp the significance of blood group compatibility and transfusion risks.

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A antigens, Anti-B antibodies

No antigens, Anti-A antibodies

A and B antigens, no antibodies

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