Microbiology MCQs
Microbiology MCQs cover bacteriology, virology, mycology, parasitology, and immunology, testing pathogen identification, microbial physiology, and infection control. Ideal for MDCAT, FCPS, NTS, and USMLE preparation, these quizzes boost academic knowledge, clinical skills, and exam success.
Q: Lactobacillus helps in
A) Yogurt fermentation
B) Alcohol production
C) Disease causation
D) DNA synthesis
✅ Correct Answer: A
Explanation: Lactobacillus species are used in the fermentation of milk to produce yogurt.
Q: Pasteurization was developed to kill pathogens in
A) Milk
B) Soil
C) Air
D) Water
✅ Correct Answer: A
Explanation: Louis Pasteur introduced pasteurization to reduce microbial load in milk and other liquids.
Q: Bacteria reproduce by
A) Mitosis
B) Fragmentation
C) Binary fission
D) Budding
✅ Correct Answer: C
Explanation: Binary fission is a simple asexual division in bacteria producing identical daughter cells.
Q: Escherichia coli is a common
A) Protozoan
B) Gut bacterium
C) Pathogen
D) Virus
✅ Correct Answer: B
Explanation: E. coli is a facultative anaerobe that resides in the human gut and aids digestion.
Q: Antibiotic resistance is often spread via
A) Ribosomes
B) Plasmids
C) Flagella
D) Pili
✅ Correct Answer: B
Explanation: Plasmids carry genes for antibiotic resistance and can be transferred between bacteria.