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chapter 6 PBS vocab
flash cards for chapter 6
Question | Answer |
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Antibiotic | A substance produced by or derived from a microorganism and able in dilute solution to inhibit or kill another microorganism. |
Antibiotic resistance | Resistance to one or more antibiotics, usually due to additional genetic information. |
Bacillus | A cylindrical or rod-shaped bacterium. |
Gram stain | A method for the differential staining of bacteria that involves fixing the bacterial cells to a slide and staining with crystal violet and iodine, then washing with alcohol, and counterstaining with safranin. Results in gram-positive bacteria retaining t |
Zone of inhibition | Region around a chemical saturated disc, where bacteria are unable to grow due to adverse effects of the compound in the disc. |
Antiviral drugs | Drugs that act, are effective, or are directed against viruses. |
Capsid | The protein shell that encloses a viral genome. It may be rod-shaped, polyhedral, or more complex in shape. |
Electron microscope | A microscope that focuses an electron beam through a specimen, resulting in resolving power a thousand-fold greater than that of a light microscope. |
Envelope | A double layer of lipid surrounding the viral capsid. |
Host cell | Cell on or in which smaller organisms or viruses live, feed, and reproduce. |
Lysis | A process of disintegration or dissolution, as of cells. |
Virion | A complete virus particle that consists of an RNA or DNA core with a protein coat sometimes with an external envelope and that is the extracellular infective form of a virus. |
Virus | Any of a large group of submicroscopic infective agents that are regarded either as extremely simple microorganisms or as extremely complex molecules, that typically contain a protein coat surrounding an RNA or DNA core of genetic material but no cell mem |
Antibiotic | A substance produced by or derived from a microorganism and able in dilute solution to inhibit or kill another microorganism. |
Antiseptic | A substance (as hydrogen peroxide) that inhibits the growth or action of microorganisms especially in or on living tissue. |
Contagious | An infectious disease communicable by contact with one who has it, with a bodily discharge of such a patient, or with an object touched by such a patient. |
Epidemic | Affecting or tending to affect an atypically large number of individuals within a population, community, or region at the same time. |
Immunity | A condition of being able to resist a particular disease especially through preventing reproduction of a pathogenic microorganism or by counteracting the effects of its products. |
Infectious | Capable of causing infection. |
Pandemic | Occurring over a wide geographic area and affecting an exceptionally high proportion of the population. |
Quarantine | A restraint upon the activities or travels of persons or the transport of goods that is designed to prevent the spread of disease or pests. |
Sanitation | The promotion of hygiene and prevention of disease by maintenance of clean conditions. |
Sterile | Free from living organisms and especially microorganisms. |
Vaccination | The introduction into humans or domestic animals of microorganisms that have previously been treated to make them harmless for the purpose of inducing the development of immunity. |
Virulent | Able to overcome bodily defense mechanisms to cause infection or disease. |