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