The campylobacter species are a Anaerobic b Microaerophilic c Facultive

The campylobacter species are a anaerobic b

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28. The campylobacter species are a.Anaerobic b.Microaerophilic c.Facultive anaerobes d.Aerobes e.Obligative thermophiles 29. Both EMB and MacConkey growth media: 30. The organism caused giardiasis is a
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1. C 2. E 3. E 4. E 5. B 6. E 7. C 8. E 9. A 10. B 11. A 12. D 13. D 14. B 15. E 16. D 17. C 18. A 19. E 20. A 21. E 22. E 23. A 24. B 25. D 26. B 27. A 28. B 29. B 30. A
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PART B: SHORT ANSWERS 1. Give an example of a PARASITE that can gain entry into the human host via each of the following modes of transmission. Use a different parasite for each. (4 marks) i) Waterborne: cryptosporidiosis, Giardia Lambilla ii) Foodborne: cyclosporiasis iii) Sexual contact: trichomonas vaginalis iv) Skin penetration: Schistosomiasi, Plasmodium (Malaria) 2. List the FOUR stages of Syphilis infection? (4 marks) 1. Primary Syphilis 2. Secondary Syphilis 3. Latent Syphilis 4. Late syphilis 3. Chlamydia exists as 2 distinct forms during its life cycle. Name these 2 forms and list their roles in their life cycle. (4 marks) i) Elementary body: No growth or replication ii) Replication body: Replication and growth 4. List 4 gram negative bacilli bacteria that do not cause gastrointestinal illness (i.e.,) they are classified as enteric in the notes but cause problems elsewhere in the body 1. Enteric fever 2. Salmonella 3. Pseudomonas cepacian 4. Haemophilus influenzae
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5. List 2 similarities and 2 differences between Clostridium botulinum and Clostridium tetani Similarities: 1. Gram positive bacilli, 2. Spore forming rods Differences: 1. Clostridium tetani requires booster every 10 years, 2. Clostridium botulinum causes are from improper canned vegetables EXTRA: C. Tetani causes tetanus EXTRA: C. Botulinum causes Botulism HE ASKED ABOUT B. CEREUS AND B. ANTHRACIS INSTEAD Similarities: 1. Gram positive bacilli, 2. Spore forming rods Differences: 1. Prevention and treatment for b, anthracis require antibiotics, 2. Enterotoxin is responsible for b. cereus illness, and causes food poisoning. 6. What are the 2 types of toxins produced by Clostridium difficult and what are their effects on the infected host? (4 marks) 1. Toxic A: Causes diarrhea 2. Toxic B: Cytotoxic to colonic cells 7. List the four levels of fungal infections, starting from the least to serious to the most serious symptoms (4 marks) 1. Superficial fungal infection 2. Cutaneous fungal infection 3. Subcutaneous fungal infection 4. Systemic fungal infection 8. What are the 2 grams negative bacilli most commonly associated with infections in cystic Fibrosis patients (2 marks) 1. Pseudomonas aeruginosa 2. Pseudomonas cepacia
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  • Winter '14
  • Bacteria, Syphilis, gram-negative bacteria

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