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10 Classification of Microorganisms -- Part 4
Monica's stool sample is designed to perform several biochemical tests at the same time.
Black colonies can identifybacteria in 4 to 24 hours.
This can be on the agar after 24 hours.
Each test has a code that is visible in serum.
The number is derived from the tests.
A positive reaction to enter an animal's bodyglucose is important for the formation of antigenic, and a positive reaction is valued at four.
The production of indole has a value of 1.
There is a computerized interpretation of the test.
The im results are provided by the manufacturer.
A system of a rabbit injected with dead typhoidbacteria results in strains with different characteristics because of the response of the antigens.
Unless a large number of tests is used, an organism could be mistaken for another.
An unknown enteric bacterium inoculated one tube of media for 15 biochemical tests.
The tube is observed after it has been incubation.
The code number is given by the numbers from each group of tests and the value of each positive test is circled.
If an unknown bacterium is isolated from a patient, Rebecca Lancefield was able to classify it and be tested against known antisera.
Some of the slides are produced by closely relatedbacteria.
serological testing can be used to screen each sample after a different known antiserum is added.
A positive test for a bac strain of bacterium can be indicated by the presence of teria, if an antiserum reacts in response to that species.
They have been dubbed the "flesh-eating"bacteria.
It is used to distinguish between gram-negative and gram-positivebacteria.
The same symptoms can be seen in a negative test.
To trace the source of an outbreak in a positive test.
When thebacteria are mixed with,glutination occurs.
Both techniques can be used to trace the origin and course of a disease outbreak.
There is a reaction between the immune system and the bacterium that provides identification of the bacterium.
The cause of lysis is usually caused by the infections they cause.
The same species of HIV might be susceptible to the two phages and the third one.
The results of the ELISA are read by the computer.
The gel is exposed to an electric current.
The bands are transferred to a filter.
At this point, the bands are not visible.
The antigens are positioned on the filter the same way they were on the gel.
The filter is washed with the patient's blood.
The patient's antibodies that combine with their specific antigen are visible when the Enzyme's Substrate is added.
The test is being read.
The patient's serum has been found.
The reactions of the separated genes can be detected.
Two diseases may be diagnosed by Western blotting.
A plate total y cov is widely used in clinical and public health laboratories.
A drop of each type of phage is placed on the bacteria to be used in the test.
The out culturing of thebacteria.
The simplest way to detect the presence of a surgeon or nurse is to use the simplest method.
The result is that the surgeon or nurse is the source of the infections.
For a particular species, fronescence can be constant.
The databases that contain the genetic sequence of hundreds of organ isms can be used online.
It's impractical for a laboratory to determine the entire sequence of bases because it takes a lot of time.
Researchers can compare the base sequence of different organisms with the use of restriction enzymes.
The restriction frag ments are caused by the cut of a molecule of DNA when a specific base sequence occurs.
G A A T T C.
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