Quiz  /  Food Microbiology Class 12 MCQ Questions With Answers

  • 1. 
    Bacterial cells are...

  • Prokaryotes
  • Eukaryotes

  • 2. 
    Which of the following have high vitamin content?

  • Bacteria
  • Yeast
  • Algae
  • Protozoa

  • 3. 
    Letter A is pointing to the:

  • Pili
  • Flagellum
  • Cell Wall
  • Plasmid

  • 4. 
    Which of the following is true of the microbial world?

  • All microbes are harmful
  • Many microbes are pathogenic
  • Most microbes are helpful
  • Humans could survive without microbes

  • 5. 
    2. Which individual first observed unicellular organisms, which he called “animalcules,” using a microscope he developed?

  • Robert Koch
  • Louis Pasteur
  • Thucydides
  • Antonie van Leeuwenhoek

  • 6. 
    Why is it important that the Petri plates are incubated upside down?

  • To get dense colonies
  • To get mat culture
  • To get colonies with reduced growth
  • To prevent moisture from condensing onto the agar surface

  • 7. 
    Which of the following is not true about the process of fermentation?

  • It can help preserve foods, preventing spoilage.
  • It converts sugars to organic acids, alcohols, and/or gases such as carbon dioxide.
  • It is carried out exclusively by unicellular eukaryotes such as yeast.
  • It is used to make foods such as cheese and bread.

  • 8. 
    9.Chitin cell walls are characteristic of which taxonomic group?

  • archaea
  • algae
  • fungi
  • bacteria

  • 9. 
    Which is applied last in gram staining?

  • alcohol
  • crystal violet
  • safranin
  • grams iodine

  • 10. 
    ____ is the study of how antibodies are released in response to a pathogen.

  • pathology
  • immunology
  • vaccinology
  • parasitology

  • 11. 
    3.Which are the three currently accepted domains?

  • Archaea, Bacteria, and Eukarya
  • Archaea, Prokaryota, and Eukaryota
  • Bacteria, Prokaryota, and Eukarya
  • Bacteria, Fungi, and Protista

  • 12. 
    Bergey’s Manual of Systematic Bacteriology is used primarily as which of the following?

  • a guide to bacterial shapes
  • a list and characterization of all known medically relevant microbes
  • a reference for bacterial classification
  • a historical account of changes in classification techniques

  • 13. 
    Which is correct for these bacterial cells?

  • Gram positive staphylobaccillus
  • Gram negative staphylobacillus
  • Gram negative streptobacillus
  • Gram positive streptobacillus

  • 14. 
    11.1. The cytoplasmic extensions used by some protists to move are called ________.

  • cilia
  • flagellum
  • spores
  • pseudopodia

  • 15. 
    15.The cell walls of archaeans often contain which of the following substances?

  • cellulose
  • chitin
  • peptidoglycan
  • protein
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