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