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13 Cards in this Set
- Front
- Back
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What are the five optimal conditions for bacterial growth?
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Moisture, moderate temperature, nutrition, darkness, and the proper amount of oxygen
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In the six-kingdom system, what replaces kingdom Monera?
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Kingdoms Archaebacteria and Eubacteria
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What methods exist for preventing/reducing bacterial contamination of food?
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Canning, dehydrating, freezing, and pasteurizing.
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What is the plasma membrane and what does it do?
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first layer around cytoplasm, regulates what chemicals the bacterium takes in from outside world
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What is the cytoplasm and what does it do?
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semifluid substance inside plasma membrane, supports DNA and ribosomes, hold chemicals which help DNA and ribosomes
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What are fimbriae?
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fibrous bristles outside the capsule/cell wall, used for grasping surfaces or other cells (for reproduction)
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What is the capsule?
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outer layer of cell, helps it stick to surfaces, deters infection-fighting agents
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What is the cell wall?
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presence or absence of one used to classify bacteria, holds cell together and in a specific shape, regulates amount of water absorbed
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What is DNA?
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holds information required to make the mass of chemicals a living entity
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What are ribosomes?
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chemical factories, produce proteins
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What is the flagellum?
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the little tail on the cell, used for movement
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What are the three basic shapes of cells?
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Bacillus (rod), coccus (spherical), and spirillum (helix)
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What are the basic steps of asexual reproduction?
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DNA attaches to plasma membrane, copied, copy of DNA attached to membrane, cell wall elongates to separate two DNA strands, cell wall and plasma membrane grow and close off the two strands from each other.
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