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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?
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?
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