Exam 31: Assisting in Microbiology and Immunology

In the scientific name Escherichia coli,the name coli indicates the

The Gram reaction a bacterium exhibits is the result of its

Which are not considered microorganisms?

The pathologist tests for Lyme disease by examining a blood sample for the infecting spirochetes.

Negative rapid strep test results must be confirmed with a throat culture,because the rapid strep test is highly specific but not highly sensitive.

Most pathogenic organisms remain viable at temperatures of ____° C.

__________ are members of a class of invertebrate animals that includes insects,crustaceans,and arachnids.

Beta hemolysis

__________ are specific structures within a cell that perform a particular cellular function.

An organism that is unlikely to be transmitted by airborne droplets is

Specimens should be collected during the acute phase of an illness and 24 hours after antibiotics are prescribed.

Which color indicates gram-positive bacteria?

Legionnaires' disease is caused by a gram-positive bacillus that causes a particular type of pneumonia.

Tightly coiled,spiral-shaped bacteria are called

Microscopically,a gram-negative bacterium appears as

The goal of maintaining the quality of a specimen is to make sure it remains _________.

The prefix staphylo- means that bacteria appear

Which of the following pathogenic organisms can be identified in sputum samples?

Tetanus is caused by a spore-forming,anaerobic bacillus that is most likely to be seen in deep wounds.

Protozoa often are identified with observation of __________,the microscopic capsule-like sacs that enclose them in the larval stage.