Microbiology MCQs (Quiz 10) Posted on June 9, 2026Author agropublishers 0 1. Which of the following diseases has been greatly reduced through chlorination of water supplies? Cholera Rabies Malaria Influenza 2. Which statement correctly describes agar’s thermal properties? Melts at 37°C and solidifies at 20°C Melts at 42°C and solidifies at 100°C Melts and solidifies at the same temperature Melts near 85–100°C and solidifies near 40–45°C 3. Viruses are best described as _______________ Single-celled organisms Acellular infectious agents Prokaryotic cells Eukaryotic cells 4. Considering microorganisms, filtration is particularly useful for sterilizing ____________ Metal instruments Heat-sensitive liquids Glassware Culture media containing agar 5. _____________________ is the branch of microbiology that deals with the study of fungi Virology Parasitology Bacteriology Mycology 6. If agar were highly reactive with medium components, what would be a likely consequence in microbiology? Difficulty interpreting microbial growth responses Increased melting temperature Complete inhibition of colony formation Improved sterilization efficiency 7. Prokaryotic ribosomes differ from eukaryotic ribosomes because prokaryotes possess _____________ 80S ribosomes 70S ribosomes 50S ribosomes 30S ribosomes 8. The active ingredient in most household bleach products is _____________ Ethanol Sodium hypochlorite Phenol Hydrogen peroxide 9. The protein coat surrounding viral nucleic acid is called the _____________ Capsid Nucleoid Envelope Cell wall 10. In microorganisms, enzyme photolyase is involved in _______________ Cell wall synthesis ATP production Repair of thymine dimers Protein degradation Loading … Question 1 of 10
