Microbiology MCQs

Microbiology MCQs challenge students to identify pathogens, understand microbial physiology, and master infection control protocols. These questions span bacteriology, virology, mycology, parasitology, and immunology. Suitable for exams like MDCAT, FCPS, NTS, and USMLE, these quizzes improve both academic knowledge and clinical readiness.

Q: Bacterial spores are formed as a survival mechanism during harsh conditions
A) Flagella
B) Pili
C) Spores
D) Cysts
Q: The gram staining technique was developed by
A) Pasteur
B) Lister
C) Koch
D) Gram
Q: Tuberculosis is primarily caused by
A) M. leprae
B) M. bovis
C) M. avium
D) M. tuberculosis
Q: Bacterial flagella are used for
A) Movement
B) Respiration
C) Sporulation
D) Conjugation
Q: Plasmids are small circular DNA molecules found in
A) Cytoplasm
B) Plasmid body
C) Ribosome
D) Nucleoid
Q: Penicillin interferes with
A) Cell wall synthesis
B) Protein synthesis
C) DNA replication
D) RNA transcription
Q: The term 'microbiology' was first used by
A) Antonie van Leeuwenhoek
B) Charles Cagniard-Latour
C) Louis Pasteur
D) Sedillot
Q: Staphylococcus aureus appears as
A) Pairs
B) Chains
C) Single cells
D) Clusters
Q: Salmonella is commonly associated with
A) Leprosy
B) Cholera
C) Diphtheria
D) Typhoid fever
Q: Autoclaving kills microbes using
A) Dry heat
B) Chemicals
C) UV light
D) Steam under pressure