Microbiology and Public Health Part II

Which of the following would be found growing in a Petri plate?

• An anaerobe

• Viruses on an agar surface

• A colony on an agar surface

• Barophiles

The systemic infection associated with microrganisms multiplying in circulating blood is:

• Bacteremia

• Septicemia

• Viremia

• None of the above

Virulence factors include:

• Toxins

• Capsules

• Enzymes

• All of the above

Infectious diseases acquired during a hospital stay are known as:

• Nosocomial infections

• Superficial infections

• Systemic infections

• Any of the above

The term defined as the ability of a microorganism to cause disease is:

• Pathogenesis

• Pathogenicity

• Virulence

• All of the above

The best descriptive term for the resident flora is

• Commensals

• Pathogens

• Parasites

• Mutualists

A disease producing organism is termed as:

• Vector

• Antigen

• Pathogen

• Antibody

The MIC is the _____ of a drug that is required to inhibit growth of a microbe

• Largest concentration

• Smallest concentration

• Standard dose

• Lowest dilution

In a broth dilution method of antimicrobial susceptibility testing, the tube with the lowest concentration of antimicrobial in which there is no visible growth is the minimal:

• Antimicrobial concentration

• Inhibitory concentration

• Bactericidal concentration

• Lethal concentration

Which of the following modes of action would be most selectively toxic?

• Interrupting ribosomal function

• Preventing cell wall synthesis

• Dissolving the cell membrane

• Inhibiting DNA replication