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Sci 221 Wk 14
| Question | Answer |
|---|---|
| The presentation of an antigen by an antigen-presenting cell activates the T cell. The cell then divides repeatedly to form a clone of identical sensitized T cells that form | effector T cells and memory cells. |
| The lymphatic system serves various functions in the body. The two most important functions of this system are | fluid balance and immunity. |
| Recognition of antigens by antibodies occurs when an | antigen’s epitopes fit into and bind to an antigen molecule’s antigen-binding site. |
| The function of which antibody is basically unknown? | IgD |
| Which organ has several functions, including defense, hematopoiesis, red blood cell and platelet destruction, and blood reservoir? | spleen |
| The _____ postulates that when an antigen enters the body, it selects the clone whose cells are committed to synthesizing its specific antibody and stimulates these cells to proliferate and to thereby produce more antibodies. | clonal selection theory |
| Lymphocytes that kill many types of tumor cells and cells infected by different kinds of viruses are known as | natural killer cells. |
| Activities that result in central movement or flow of lymph are called | lymphokinetic activities. |
| Pyrogen molecules trigger the fever response by promoting the production of | prostaglandins. |
| Adaptive immunity, part of the body’s third line of defense, is orchestrated by two different classes of a type of white blood cell called the | lymphocyte |
| The ability of our immune system to attack abnormal or foreign cells but spare our own normal cells is called: | self-tolerance. |
Created by:
KhyianaSlone