DrJohn Doe,a Research Microbiologist for a University Medical Center,has Been

question 53

Multiple Choice

Dr.John Doe,a research microbiologist for a university medical center,has been accused of sending Bacillus anthracis,the causative agent of anthrax,through the mail to the President.You,as a public health official with the CDC,have to determine if it is the same strain as the two strains of B. anthracis found cultured in his lab.Which method of identification would you use to compare these three bacterial samples?

• A)serological testing using agglutination
• B)Gram staining
• C)biochemical test identification
• D)pulse-field gel electrophoresis

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Definitions:

Osmosis

The process by which molecules of a solvent pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.

Filtration

The process of separating solids from liquids or gases using a filter medium that allows only the fluid to pass through.

Active Transport

The movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Vital Capacity

The maximum amount of air a person can expel from the lungs after a maximum inhalation, used to assess the health of respiratory systems.