Microbiology MCQs (Quiz 3) Posted on June 7, 2026June 10, 2026Author agropublishers 0 1. Which of the following correctly pairs a microorganism with the branch of microbiology that studies it? Plasmodium falciparum — Phycology Saccharomyces cerevisiae — Mycology Escherichia coli — Virology Influenza virus — Bacteriology 2. The structure observed by Robert Hooke in cork was actually _____________ Animal cells Bacterial colonies Dead cell walls Living plant cells 3. Which instrument is used to sterilize culture media and laboratory equipment using high-pressure steam? pH meter Incubator Autoclave Microscope 4. ______________ is the instrument used to magnify small objects Microscope Autoclave Centrifuge Spectrophotometer 5. The major component of bacterial cell walls is _______________ Chitin Peptidoglycan Lignin Cellulose 6. The standard sterilization cycle in an autoclave is generally ______°C, for _______minutes and at________ pounds per square inch (psi). 60°C for 20-30 minutes at 15 psi 121°C for 15–20 minutes at 15 psi 80°C for 5-10 minutes at 10 psi 100°C for 5-10 minutes at 5 psi 7. The most commonly used microscope in microbiology laboratories is _______________ Fluorescence microscope Dark-field microscope Electron microscope Bright-field microscope 8. Which of the following is NOT a branch associated with microbiology? Virology Geology Bacteriology Mycology 9. Which bacterial structure is selectively permeable? Plasma membrane Flagellum Capsule Cell wall 10. Magnification refers to ___________________ Ability to distinguish two points Size of specimen Brightness of image Degree to which an image is enlarged Loading … Question 1 of 10 Microbiology MCQs (Quiz 3)
