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40 Cards in this Set
- Front
- Back
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TSA agar deeps |
used for labs which check anaerobic conditions of microbes |
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TSA agar |
used to learn to inoculate; aids in the preservation of microbes slant for lab use |
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enrichment broth |
used to inhibit normal flora while promotion growth of a particular organism(s). Ex. SF broth which inhibits normal stool flora while promoting the growth of Salmonella and Shigella |
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selective media |
complex plating media that may also serve to differentiate among certain genera but are highly selective in their action on other organisms (Ex. Salmonella-Shigella agar) |
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ubiquitous |
organism being considered can be found just about everywhere |
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aseptically |
without contamination of the culture, the sterile medium, or the surroundings |
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lophotrichous |
a cell that has tufts of flagella at the end |
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Natural Killer Cells (NK) |
cells that kill foreign or infected cells without antigen-antibody interaction |
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fomites |
inanimate objects |
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vectors |
A plasmid or virus introducing new DNA into a new host |
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common source epidemic |
an epidemic in which the disease in transmitted from a single source (water supply) and is not transmitted from person to person |
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Null cell |
Killer cells |
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plasma cells |
by the cell that is activated by antibodies |
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B-cell |
cell that converts to a plasma cell when activated and produces antibodies |
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T-cell |
cell involved in cell mediated immunity |
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macrophages |
largest type of leukocyte |
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pathogen |
1.) any agent, usually a virus, bacterium, fungus, protozoan, or helminth, that causes disease. 2.) microorganisms that live on a host
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colony |
visible mass of cells |
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trypticase soy agar (TSA) |
Grows gram positive, and gram negative organisms; clear yellow agar; found in agar deeps, agar slants, and agar plates |
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Levine/EMB |
Enrichment broth (enriched medium); maroon in color; E.Coli grows as a bluish sheen; Pseudomonas have a metallic sheen |
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Chocolate "burnt" |
"burnt" blood agar plate; Highly enriched nutrient agar (or broth) to which a nutritive supplement, such as blood, has been added (ex. blood agar). Brown in color |
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nutrient broth |
liquid form; used to preserve microbes over long periods of time; good for transferring techniques. |
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MaConkey |
A selective and differential medium; grows only grow negative organisms; pink in color; also has a lactose indicator (pink pigment) |
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Blood Agar Plate (BAP) |
usually contains sheep blood in the concentration of 5%. The use of sheep blood increases hemolysis of Group A Beta Strep. Group D strep is usually alpha or on hemolytic on these plates. Will support the growth of many gram positive and gram negative organisms. |
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polymorphonuclear neutrophils (PMN) |
neutrophils that have a variation in nuclear appearance |
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point of prevalence |
the number of cases of a disease at a specific point in time in a defined population |
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prevalence rate |
prevalence is a proportion of people in a population who have a particular disease at a specified point in time |
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incidence rate |
the number of new cases of a disease reported in a defined population during a specific period of time |
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index case |
first occurrence of an infection or disease that results in epidemic |
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propagated transmission |
a disease transmitted from person to person |
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chromogen |
a colored molecule |
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surface to volume ratio |
surface area that supplies the nutrients to the cytoplasm |
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staphylococcus |
the division planes of a coccus are irregular, a cluster of cells is produced |
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sacrina |
3rd division plane perpendicular to the other 2 produces a cube shaped arrangement 8 cells |
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auxochrome |
charged portion of a chromogen, and allows it to act |
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chromophore |
portion of the chromogen that gives it its color |
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heat fixed |
kills bacteria, makes them adhere to the slides and coagulates cytoplasmic proteins to make them more visible |
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basic stains |
staining solution with a positively charged chromophore |
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tetrad |
a 2nd division that occurs in a plane perpendicular to the 1st |
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streptococcus/streptobacillus |
cell continues to divide in the same plane and remain attached |
