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6. Which of the following is NOT a plasmodium which can cause malaria?

  • Plasmodium falvivax
  • Plasmodium ovale
  • Plasmodium falciparum
  • Plasmodium vivax
  • Plasmodium malariae

7. What is the name of a microbe that requires salt to grow?

  • Non-halophile
  • Extreme halophile
  • Xerophile
  • Halophile
  • Halotolerant

8. What is the water activity (Aw) of pure water?

  • 1
  • -1
  • 0.5
  • 0
  • 10

9. Which of these waterborne pathogens enters via the skin?

  • Leptospirosis
  • Cryptosporidiosis
  • Leptospirosis and schistosomiasis
  • Cryptosporidiosis and Typhoid fever
  • Schistosomiasis

10. The influenza virus has a single-stranded RNA genome present in how many segments?

  • 8
  • 6
  • 10
  • 7
  • 9

11. Which of these is not a type of fungi?

  • Basidiomycota
  • Progynmycota
  • Zygomycota
  • Chytridiomycota
  • Ascomycota

12. Which of these is a respiratory waterborne pathogen?

  • Cholera
  • Legionnaires' Disease
  • Leptospirosis
  • Norwalk virus
  • Typhoid fever

13. Which of the following is not a bacterial respiratory diseases?

  • Leprosy
  • Diptheria
  • Pneumonia
  • Rubella
  • Tuberculosis

14. What is the type of fungal infection in humans which is transmitted via inhalation of fungal spores?

  • Subcutaneous fungal infection
  • Systemic mycoses
  • Superficial infection
  • Hyphal fragmentation
  • Cutaneous fungal infection

15. Which type of immune cell does not come from a myeloid progenitor?

  • T cells
  • Neutrophils
  • Macrophages
  • Mast cells
  • Eosinophils

16. What is the optimum temperature of a hyperthermophile?

  • -10-20
  • 120-150
  • 10-50
  • 67-110
  • 40-70

17. Which of the following statements about campylobacter is false?

  • It produces cytotoxins
  • Causes diarrhoea
  • It is a waterborne pathogen
  • It is caused by campylobacter jejuni
  • It has a high infective dose

18. What chemical do Natural Killer (NK) cells use to punch holes in the infected cell membrane?

  • Endotoxin
  • Enterotoxin
  • Porin
  • Perforin
  • Histamine

19. Which type of immune cell activates B cells to produce antibodies?

  • Macrophages
  • T helper 2
  • Cytotoxic T cells
  • T helper 1
  • B memory cells

20. Which bacterium causes chancroid?

  • Papilloma virus
  • Treponema pallidum
  • Haemophilus ducreyi
  • Neisseria chancroid
  • Haemophilus trachomatis