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: The function of an autoclave is to
A) Sterilize using dry heat
B) Sterilize using steam under pressure
C) Disinfect using alcohol
D) Kill viruses only
Q: Botulinum toxin acts by
A) Increasing neurotransmitter release
B) Damaging DNA
C) Inhibiting protein synthesis
D) Blocking acetylcholine release
Q: MacConkey agar is selective for
A) Fungi
B) Gram-negative bacteria
C) Gram-positive bacteria
D) Viruses
Q: A lytic bacteriophage
A) Kills the host cell
B) Converts bacteria into spores
C) Forms a symbiotic relationship
D) Integrates into the host genome
Q: The test used to detect syphilis antibodies is the
A) Widal test
B) Tuberculin test
C) ELISA for HIV
D) VDRL test