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19 Cards in this Set
- Front
- Back
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eukaryote |
a cell that has a nucleus |
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prokaryote |
a cell that has no nucleus |
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virus |
particles of DNA or RNA inside a protein coat |
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active immunity |
when your body makes its own antibodies |
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antibody |
a substance made to destroy invading proteins |
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passive immunity |
when antibodies are introduced into the body |
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antigens |
proteins and chemicals foreign to your body |
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host |
the cell a virus takes over |
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immune system |
a complex group of defenses to fight diseases |
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lymphocyte |
WBC that phagocytize antigens |
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vaccine |
a solution made from "dead" viruses that is used to prevent diseases |
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bacteriophage |
a virus that attacks bacteria |
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antibiotics |
medicines that kill bacteria |
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epidemic |
a rapid spread of disease through a large area |
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taxonomy |
science of classifying and naming |
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nucleic acid |
DNA and RNA |
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T-cells |
HIV attacks these WBCs |
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First Line of Defense |
keeps pathogens out - skin, mucus membranes, cilia in the trachea |
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Second Line of Defense |
inflammation, lymphocytes, fever, T-cells, B-cells |
