Term
| Which type of immune response are lymphocytes involved in? |
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Definition
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Term
| What do lymphocytes have on their cell surface to detect antigens? |
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Definition
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Term
| What forms when an antigen binds to a membrane receptor of a lymphocyte? |
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Definition
| a clonal population of thet type of lymphocyte |
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Term
| Name the two broad categories of lymphocytes. |
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Definition
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Term
| Which type of lymphocyte produces antibodies? |
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Definition
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Term
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Definition
| Y-shaped proteins made by B Lymphocytes |
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Term
| What is at the end of each arm of an antibody? |
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Definition
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Term
| What forms when an antibodies attach to antigens? |
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Definition
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Term
| How are antigen-antibody complexes destroyed? |
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Definition
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Term
| What is the result of B lymphocytes responding to harmless substances? |
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Definition
| allergic reaction / allergy |
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Term
| How do T lymphocytes respond when they detect infected cells? |
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Definition
| they release proteins which destroy the infected cells |
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Term
| What is the name for programmed cell death? |
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Definition
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Term
| What causes autoimmune diseases? |
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Definition
| failure of the T lymphocytes to recognise self antigens leading to body cells being attacked by T lymphocytes. |
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Term
| Name to disease cause by autoimmunity. |
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Definition
| type 1 diabetes, rheumatoid arthritis, MS |
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Term
| What remains in the body after one exposure to a particular pathogen? |
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Definition
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Term
| State two features of the secondary immune response that distinguish it from the primary immune response. |
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Definition
| faster production of antibodies, higher concentration of antibodies produced |
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Term
| What is the benefit of the action of the memory cells in the secondary response? |
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Definition
| the invading pathogens are destroyed before the individual shows symptoms |
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Term
| What part of the immune ssyte does the human immunodeficiency virus (HIV) attack? |
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Definition
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Term
| What does HIV infection often lead to ? |
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Definition
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Term
| What does AIDS stand for? |
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Definition
| Acquired Immune Deficiency Syndrome |
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Term
| Why are AIDS sufferers more vulnerable to infections? |
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Definition
| they have a weakened immune system. |
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