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26 Cards in this Set
- Front
- Back
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Antibody
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A protein made in your immune system produced to fight infection.
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Virus
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A tiny particle that invades living cells. It is on the border line of living and non-living things.
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Parasite
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An organism that survives by living on or in a host organism, thus harming it.
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Electron microscope
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A microscope that enabled scientists to see and study the shapes and sizes of certain viruses.
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Virus Structure
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Made up of two basic parts-a core of hereditary material and an outer coat of protein.
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Bacteriophage
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A virus that infects bacteria-literally means "bacteria eater"
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Viral Reproduction
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The five-step process in which a virus reproduces.
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Attachment
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The first step in viral reproduction.
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Insertion
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The second step in viral reproduction.
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Production of viral parts
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The third step in viral reproduction.
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Assemblage
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The fourth step in viral reproduction.
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Lysis
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The fifth and final step in virus reproduction.
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Vaccine
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Made of weakened or killed viruses. Stimulates the body to produce antibodies.
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Monera
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One of the five kingdoms that consists of the organisms monerans (bacteria).
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Monerans
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Now known as bacteria. Tiny organisms that consist of a single cell. Lack a nucleus and other cell structures. Oldest living thing.
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Bacillus
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The rod-shaped bacteria.
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Coccus
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The sphere-shaped bacteria.
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Spirillum
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The spiral-shaped bacteria.
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Cell Wall
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A tough, rigid structure that surrounds, supports, shapes, and protects the cell. *BACTERIA CELL WALL-DIFFERENT FROM PLANT CELL WALL*.
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Capsule
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A coating on the outside of the cell wall.
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Cytoplasm
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A jelly-like mixture of substances that makes up most of the cell.
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Flagellum
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A long, thin, whiplike structure that propels a bacterium through its environment.
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Heterotroph
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An organism that cannot make its own food and must therefore eat other organisms to obtain energy.
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Autotroph
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An organism that can make its own food.
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Decomposers
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Organisms that feed on dead things, and break them down into simpler substances.
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Endospore
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A small internal resting cell which some bacteria form when food is scarce or conditions become unfavorable. Consists of a small amount of cytoplasm, and a thick protective outer coat.
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