Microbiology and Infectious Diseases Quiz

What is the primary site of colonization for Staphylococcus aureus?

• Intestines

• Skin

• Nose

• Throat

Which test is used to detect the presence of H. pylori-associated urease?

• Urine test

• Skin test

• Blood test

• Breath test

What is the causative agent of Lyme disease?

• Staphylococcus aureus

• Helicobacter pylori

• Borrelia burgdorferi

• Treponema pallidum

Which of the following is a characteristic of Gram-negative bacteria?

• Lack of cell wall

• Presence of outer membrane

• Thick peptidoglycan layer

• Presence of teichoic acids

What is the function of urease in H. pylori?

• Degrades proteins

• Increases local pH

• Destroys red blood cells

• Forms biofilms

Which of the following is a symptom of late-stage Lyme disease?

• Nausea

• Bulls eye rash

• Arthritis

• Fever

Which antibiotic is syphilis very sensitive to?

• Tetracycline

• Penicillin

• Erythromycin

• Ciprofloxacin

Which of the following is a virulence factor of Staphylococcus aureus?

• Urease

• Vacuolating cytotoxin

• Endotoxin

• Leukocydin

What is the primary treatment for H. pylori infection?

• Antifungals

• Antibiotics and acid reducing drugs

• Surgery

• Antibiotics

Which of the following is a characteristic of Treponema pallidum?

• Gram-positive cocci

• Strictly human pathogen

• Forms biofilms

• Causes Lyme disease