Hardest Microbiology Quiz Trivia: Test!

42 Questions | Total Attempts: 926

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Hardest Microbiology Quiz Trivia: Test!

Do you like researching? Have you ever thought about how many microorganisms reside inside and outside your body? If you feel so, you are a microbiology student who loves to investigate everything around the environment. Microbiology is a broad area of science that includes bacteriology, parasitology, and many more. This quiz will test your knowledge and understanding of the different microorganism's roles and functions.  


Questions and Answers
  • 1. 
    All of the following statements about fungi are true except:
    • A. 

      Fungi are heterotrophic

    • B. 

      Most fungi are aerobic

    • C. 

      All fungi have eurocaryotic cells

    • D. 

      All fungi are unicellular

    • E. 

      Few fungi are pathogenic to humans

  • 2. 
    Yeast infections are caused by:
    • A. 

      Candida albicans

    • B. 

      Histoplasma capsulatum

    • C. 

      Saccharomyces cerevisiae

    • D. 

      Penicillium

    • E. 

      Aspergillus

  • 3. 
    Fungi, more often than bacteria, are responsible for decomposition of plant material because:
    • A. 

      They have fermentative metabolism

    • B. 

      They are aerobic

    • C. 

      They cannot tolerate high osmotic pressure

    • D. 

      They can tolerate low-moisture conditions

    • E. 

      They prefer a neutral environment (pH 7)

  • 4. 
    Which of the following statements is false?
    • A. 

      Fungal spores are resting spores to protect the fungus from adverse environmental conditions

    • B. 

      Fungal spores are for reproduction

    • C. 

      Fungi produce sexual spores

    • D. 

      Fungi produce asexual spores

    • E. 

      Fungal spores are used in identification of fungi

  • 5. 
    All of the following are true about protozoa except:
    • A. 

      They have eucaryotic cells

    • B. 

      All make cysts

    • C. 

      They may reproduce sexually

    • D. 

      They may have flagella or cilia

    • E. 

      None of the above

  • 6. 
    Which of the following is not associated with foodborne illness?
    • A. 

      Shigella

    • B. 

      Campylobacter

    • C. 

      Erwinia

    • D. 

      Staphylococcus aureus

    • E. 

      Salmonella

  • 7. 
    In a healthy human, resident microorganisms would be found in all of the following areas except:
    • A. 

      Lower urethra

    • B. 

      Conjunctiva

    • C. 

      Bloodstream

    • D. 

      Tooth and gum surfaces

    • E. 

      Nasal passages

  • 8. 
    Which of the following molecules or structures is not associated with innate immunity?
    • A. 

      Mucous membranes

    • B. 

      Phagocytes

    • C. 

      Antibodies

    • D. 

      Lysozyme

    • E. 

      Skin

  • 9. 
    Both staphylococci and streptococci:
    • A. 

      Are gram-positive cocci

    • B. 

      Are arranged in chains

    • C. 

      Are gram-negative cocci

    • D. 

      Form endospores

    • E. 

      Are strict anaerobes

  • 10. 
    Which would be the most unlikely location to find adhesin molecules on a newly discovered bacterium?
    • A. 

      Fimbriae

    • B. 

      Capsule

    • C. 

      Glycocalyx

    • D. 

      Ribosomes

    • E. 

      Cell wall

  • 11. 
    Viruses that infect bacteria are called:
    • A. 

      Virions

    • B. 

      Hepadnaviridae

    • C. 

      Bacteriophages

    • D. 

      Bactericides

    • E. 

      Polyhedral virus

  • 12. 
    Cell-mediated immunity in part protects against:
    • A. 

      Normal cells of the host, producing the cell-mediated immunity

    • B. 

      Viruses free in body fluids

    • C. 

      Bacteria free in body fluids

    • D. 

      Intracellular bacteria and viruses

    • E. 

      Toxins

  • 13. 
    Hyphae that lack cross-walls, and thus are long tubes with many nuclei, are called:
    • A. 

      Coenocytic

    • B. 

      Septate

    • C. 

      Rhizoid

    • D. 

      Plasmodial

    • E. 

      Mycelial

  • 14. 
    The respiratory system is protected against harmful microbes by all of the following except:
    • A. 

      The ciliary escalator

    • B. 

      Mucous-coated hairs

    • C. 

      The lacrimal apparatus

    • D. 

      The epiglottis

    • E. 

      Ciliated cells

  • 15. 
    Subunit vaccines tend to be safer than whole cell vaccines because:
    • A. 

      They contain avirulent strains

    • B. 

      They contain intact but dead microbes

    • C. 

      They cannot reproduce in the host

    • D. 

      They produce a stronger immune response

    • E. 

      They are antigenic

  • 16. 
    Which of the following is not an A-B exotoxin?
    • A. 

      Tetanus toxin

    • B. 

      Cholera toxin

    • C. 

      Diphtheria toxin

    • D. 

      Staphylococcus aureus enterotoxin

    • E. 

      Streptolysin O

  • 17. 
    Which is not a cell type involved in cell-mediated immunity?
    • A. 

      Cytotoxic T cells

    • B. 

      Plasma cells

    • C. 

      TH1 cells

    • D. 

      Helper T cells

    • E. 

      Regulatory T cells

  • 18. 
    All of the following are true of the fungi except:
    • A. 

      They can grow in high concentrations of sugars and salts

    • B. 

      Diseases caused by fungi are called mycoses

    • C. 

      They are strict aerobes

    • D. 

      They are capable of metabolising complex carbohydrates found in newspaper and wood

    • E. 

      Identification of fungi usually involves examination of spore types

  • 19. 
    The stage of phagocytosis in which the phagocyte's plasma membrane attaches to the surface of the microbe is called:
    • A. 

      Adherence

    • B. 

      Chemotaxis

    • C. 

      Ingestion

    • D. 

      Cytolysis

    • E. 

      Fusion

  • 20. 
    Infectious diseases that are easily passed from host to host within a population are best described as:
    • A. 

      Noncommunicable

    • B. 

      Communicable

    • C. 

      Contagious

    • D. 

      Acute

    • E. 

      Chronic

  • 21. 
    Which of the following is true about conjugated vaccines:
    • A. 

      The antigens are made using recombinant DNA technology

    • B. 

      They are useful because young children respond poorly to polysaccharides

    • C. 

      They contain only protein subunits

    • D. 

      They contain attenuated pathogens

    • E. 

      They contain only T-dependent antigens

  • 22. 
    Which spore is in a sac and results from the fusion of two nuclei from different strains of the same fungi? 1-Arthrospore 2-Ascospore 3-Basidiospore 4-Blastospore 5-Chlamydospore 6-Conidiospore 7-Sporangiospore 8-Zygospore
    • A. 

      6

    • B. 

      1

    • C. 

      2

    • D. 

      4

    • E. 

      8

  • 23. 
    Which is a thick-walled spore formed as a segment within a hypha? 1-Arthrospore 2-Ascospore 3-Basidiospore 4-Blastospore 5-Chlamydospore 6-Conidiospore 7-Sporangiospore 8-Zygospore
    • A. 

      None

    • B. 

      5

    • C. 

      7

    • D. 

      3

    • E. 

      1

  • 24. 
    Which of these spores are asexual spores? 1-Arthrospore 2-Ascospore 3-Basidiospore 4-Blastospore 5-Chlamydospore 6-Conidiospore 7-Sporangiospore 8-Zygospore
    • A. 

      1,3,5,8

    • B. 

      All

    • C. 

      2,3,6,8

    • D. 

      1,4,5,6,7

    • E. 

      2,4,6,7,8

  • 25. 
    Which of the following pairs are mismatched? 1.Arthrospore--formed by fragmentation 2. Sporangiospore--formed within hyphae 3. Conidiospore--formed in a chain 4. Blastospore--formed from a bud 5. Chlamydospore--formed in a sac
    • A. 

      1 and 2

    • B. 

      3 and 4

    • C. 

      2 and 5

    • D. 

      4 and 5

    • E. 

      2 and 3

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