Gram Stain and Aeruginosa Characteristics Quiz

Play an AI-generated podcast conversation about this lesson

Which Neisseria species ferments both maltose and glucose?

Neisseria meningitidis (correct)

Neisseria gonorrhoeae

Neisseria lactamica

Neisseria sicca

What is the primary clinical manifestation of meningococcal meningitis related to endotoxin?

Altered mental state

Vomiting

Stiff neck

Petechial rash (correct)

Which virulence factor of Neisseria is associated with adherence to host cells?

IgA1 protease

Pili (correct)

Endotoxin

Capsule

Which antibiotic is used prophylactically for close contacts of individuals infected with Neisseria?

Rifampin Signup and view all the answers

Which Neisseria species causes sexually transmitted infections in humans?

Neisseria gonorrhoeae Signup and view all the answers

Which Neisseria species is commonly found as asymptomatic carriage in the nasopharynx?

Neisseria meningitidis Signup and view all the answers

What is the primary virulence factor of Pseudomonas aeruginosa that allows it to inhibit protein synthesis?

Exotoxin A Signup and view all the answers

Which of the following is NOT a characteristic of Bacteroides fragilis, a member of the Bacteroidaceae family?

Possesses Lipid A Signup and view all the answers

Which antibiotic is NOT commonly used to treat Pseudomonas aeruginosa infections?

Cefazolin Signup and view all the answers

Which of the following is a true statement about the metabolism of Pseudomonas aeruginosa?

It is an obligate aerobe Signup and view all the answers

Which of the following is NOT a common clinical manifestation of Pseudomonas aeruginosa infections?

Meningitis Signup and view all the answers

Which of the following is a key virulence factor of Salmonella typhi?

Capsule (Vi antigen) Signup and view all the answers

What is the primary virulence factor that allows Bacteroides fragilis to cause abscesses in the GI tract, pelvis, and lungs?

Absence of Lipid A Signup and view all the answers

A patient presents with bloody diarrhea, mucus, and pus. Which of the following is the most likely causative organism?

Shigella Signup and view all the answers

Which of the following is the primary treatment for Salmonella typhi infections?

Ciprofloxacin Signup and view all the answers

Which of the following Salmonella species is non-motile (lacks the H antigen)?

Salmonella typhi Signup and view all the answers

Which of the following is a common clinical manifestation of Salmonella paratyphi infection?

Gastroenteritis Signup and view all the answers

Which of the following Salmonella species is associated with a chronic carrier state?