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: Bacterial spores are formed as a survival mechanism during harsh conditions
A) Flagella
B) Pili
C) Spores
D) Cysts
✅ Correct Answer: C
Explanation: Spores protect the bacterial genome when nutrients are scarce or conditions are hostile.
Q: The gram staining technique was developed by
A) Pasteur
B) Lister
C) Koch
D) Gram
✅ Correct Answer: D
Explanation: Hans Christian Gram developed the gram stain to differentiate bacterial species.
Q: Tuberculosis is primarily caused by
A) M. leprae
B) M. bovis
C) M. avium
D) M. tuberculosis
✅ Correct Answer: D
Explanation: Mycobacterium tuberculosis is the causative agent of pulmonary tuberculosis.
Q: Bacterial flagella are used for
A) Movement
B) Respiration
C) Sporulation
D) Conjugation
✅ Correct Answer: A
Explanation: Flagella enable bacterial motility through liquid environments.
Q: Plasmids are small circular DNA molecules found in
A) Cytoplasm
B) Plasmid body
C) Ribosome
D) Nucleoid
✅ Correct Answer: A
Explanation: Plasmids are extra-chromosomal DNA elements located in the cytoplasm of bacteria.