Home >> Flashcards >> Microbiology >> Key Terms Microscopy and Cell Structure
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Details
Title: Key Terms Microscopy and Cell Structure
Description: Microbiology a Human Perspective Edition 6, Chapter 3 Key Terms
Total Flash Cards: 14
Created: 08/27/2009 14:09:09
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Cards in this set:
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Definition
| A phospholipid bilayer embedded with proteins that surrounds the cytoplasm and defines the boundry of the cell |
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| A type of dormant cell that is extraordinarily resistant to damaging conidtions including heat, desiccation, ultraviolet light and toxic chemicals |
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| Cell surface structures that generally enable cells to adhere to cetain surfaces; some types are involved in a mechanism of DNA transfer |
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| A structure that provides a mechanism for motility |
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| Bacteria that have a cell wall composed of a tick layer of peptidoglycan; When Gram stained these cells are purple |
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| Mechanisms used to transport nutrients and other small molecules acrsoss the cytoplasmic membrane |
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| Directed movement of an organism toward or away from a certain chemical in the enviornment |
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| A macromolecule that provides rigidity to the cell wall; it is found only in bacteria |
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| Structure intimately involved in protein synthesis |
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| Molecule that makes up the outer layer of the outer membrane of Gram-negative bacteria |
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| A distinct, thick gelatinous material that surrounds surrounds some microorganisms |
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| Bacteria that have a cell wall composed of a thin layer of peptidoglycan surrounded by an outer membrane; when Gram stained these cells are pink |
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| The gel-like material that fills the region between the cytoplasmic membrane and the outer membrane of Gram-negative bacteria |
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| Extrachromosomal Dna molecule that replicates independently of the chromosome |
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