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7 Cards in this Set
- Front
- Back
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Know the difference in color and cell wall morphology of gram - and gram +bacteria.
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Gram - has a thinner cell wall with a inner and outer membrane. The color is pink.
Gram + has a thicker cell wall and is purple. |
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Know the bacteria shapes and proper terms
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Sphere= cocci
Rectangle= baili Spiral= Spirilli Strepto=chains Staph=cluster |
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Define: Peptidoglycan cell wall
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A type of polymer in bacterial cell walls consisting of modified sugars cross-linked by short polypeptides.
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Define: slimelayer
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A sticky layer that surrounds the cell walls of some bacteria, protecting the cell surface and sometimes helping to glue the cell to surfaces
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Define: prokaryote
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A type of cell lacking a membrane-enclosed nucleus and membrane-enclosed organelles; found only in the domains Bacteria and Archaea.
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Define: eukaryote
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A type of cell with a membrane-enclosed nucleus and membrane-enclosed organelles, present in protists, plants, fungi, and animals; also called eukaryote.
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Define: Nitrogen fixation
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The assimilation of atmospheric nitrogen by certain prokaryotes into nitrogenous compounds that can be directly used by plants.
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