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The blanket term for any media able to support the growth of most culturable microbes.
What is General Growth Media?
_____________ _______________ is a blanket term encompassing a set of practices preventing unwanted contamination in microbiology.
What is Aseptic Technique?
The term used to distinguish colonies on a solid media plate visually.
What is colony morphology or cultural characteristics?
This anaerobic process breaks down carbohydrates and produces acid as a byproduct.
What is fermentation?
A Hyperthermophile might live on this underwater feature.
What are hydrothermal vents?
A selective and differential medium that selects for halophiles and determines the organism's ability to ferment mannitol.
What is Mannitol Salt Agar (MSA)?
A commonly used technique to categorize bacteria based on their cell wall composition.
What is a Gram Stain?
___________________ ______________ are enzymes that a bacteria makes inside the cell, and then releases into the environment to break down large macromolecules.
What are extracellular enzymes?
This feature is the main difference between antibiotics and antiseptics.
What is selective toxicity?
The specific term for bacterial infections acquired in a health care facility.
What are nosocomial infections?
Sheep's Blood Agar supports the growth of this type of organism.
What is fastidious?
A positive test for the production of an extracellular enzyme on solid media is indicated by...
What is a zone of clearance?
The difference between the terms "virulence" and "virulence factor".
What is...Virulence factors are specific characteristics used to aid in pathogenesis, whereas virulence refers to the severity of the infection.
Gram-positive organisms have a thicker layer of this than Gram-negative organisms.
What is peptidoglycan?
This organism came from a water sample of a nearby river plated on EMB agar. After 48 hours of incubation, black colonies with a metallic green sheen have grown.
What is Escherichia coli?
MacConkey and Eosin Methylene Blue agar are both selective and differential for these two qualities.
What is Gram negative and Lactose fermentation?
A Fluid Thioglycollate tube is inoculated with an unknown organism. After incubation, the organism has grown only in the top half of the tube. From these results, you can determine this quality of the organism.
What is an obligate aerobe?
In a Nitrate Reduction test, complete reduction indicates that the organism can perform this process.
What is the reduction of nitrate to nitrogen gas?
This process, initiated by UV radiation, can cause deleterious mutations in a DNA sequence.
What is thymine dimerization?
Food can make you sick in two ways. One method has a slow onset that takes usually 48 or more hours, while the other produces symptoms quickly within a few hours.
What is actual bacterial infection and exotoxins?
The difference between a selective function and a differential function is...
What is selective media only allows certain things to grow, while differential media causes a change based on a characteristic of the organism.
This series of tests identifies organisms through metabolic properties (list each test).
What is the IMViC test series? (Indole, Methyl Red, Voges-Proskauer, Citrate)
Hemolysis is considered a _________________ indicator. Hemolysin is an example of a ___________ __________.
What is pathogenic and virulence factor?
This feature is what makes a free radical highly reactive.
What is an unpaired electron?
Pathogens exhbiting this feature are becoming of increasing concern in the medical field.
What is antibiotic resistance?