Chapter 15 Microbial Mechanisms of Pathogenicity

1. Chapter 15 – Microbial Mechanisms of Pathogenicity

2. Topic 1: Portals of Entry $100 Question Which portal of entry is most often used by microorganisms? a. Parenteral route b. Mucous membranes of the respiratory route c. Mucous membranes of the conjunctiva d. Skin

3. Topic 1: Portals of Entry $100 Answer Which portal of entry is most often used by microorganisms? a. Parenteral route b. Mucous membranes of the respiratory route (correct answer) c. Mucous membranes of the conjunctiva d. Skin

4. Topic 1: Portals of Entry $200 Question Which of the following diseases utilizes the respiratory tract as its portal of entry? a. Giardiasis b. Hepatitis c. Influenza d. Cholera

5. Topic 1: Portals of Entry $200 Answer Which of the following diseases utilizes the respiratory tract as its portal of entry? a. Giardiasis b. Hepatitis c. Influenza (correct answer) d. Cholera

6. Topic 1: Portals of Entry $300 Question One disease that can be transmitted by the parenteral route is a. Tetanus b. Trachoma c. Influenza d. Tuberculosis

7. Topic 1: Portals of Entry $300 Answer One disease that can be transmitted by the parenteral route is a. Tetanus (correct answer) b. Trachoma c. Influenza d. Tuberculosis

8. Topic 1: Portals of Entry $400 Question What is the portal of entry for chlamydia? a. Genitourinary route b. Gastrointestinal route c. Skin d. Respiratory route

9. Topic 1: Portals of Entry $400 Answer What is the portal of entry for chlamydia? a. Genitourinary route (correct answer) b. Gastrointestinal route c. Skin d. Respiratory route

10. Topic 1: Portals of Entry $500 Question When pathogens enter the skin, they usually a. Enter through the hair follicles and sweat ducts b. Penetrate intact skin c. Are injected into the skin d. Adhere to the skin and then penetrate the skin

11. Topic 1: Portals of Entry $500 Answer When pathogens enter the skin, they usually a. Enter through the hair follicles and sweat ducts (correct answer) b. Penetrate intact skin c. Are injected into the skin d. Adhere to the skin and then penetrate the skin

12. Topic 2: Bacterial Pathogens $100 Question To prevent the disease botulism, which is caused by ingesting an exotoxin, it is necessary to a. Avoid canned food b. Boil food prior to consumption c. Prevent fecal contamination of food d. Administer antibiotics to patients

13. Topic 2: Bacterial Pathogens $100 Answer To prevent the disease botulism, which is caused by ingesting an exotoxin, it is necessary to a. Avoid canned food b. Boil food prior to consumption (correct answer) c. Prevent fecal contamination of food d. Administer antibiotics to patients

14. Topic 2: Bacterial Pathogens $200 Question Which of the following pathogens uses its tapered end as a hook to attach to host cells? a. Listeria monocytogenes b. Neisseria gonorrhoeae c. Treponema pallidum d. E. coli

15. Topic 2: Bacterial Pathogens $200 Answer Which of the following pathogens uses its tapered end as a hook to attach to host cells? a. Listeria monocytogenes b. Neisseria gonorrhoeae c. Treponema pallidum (correct answer) d. E. coli

16. Topic 2: Bacterial Pathogens $300 Question Which organism produces an exotoxin? a. Proteus spp. b. Neisseria meningitidis c. Staphylococcus aureus d. Salmonella typhi

17. Topic 2: Bacterial Pathogens $300 Answer Which organism produces an exotoxin? a. Proteus spp. b. Neisseria meningitidis c. Staphylococcus aureus (correct answer) d. Salmonella typhi

18. Topic 2: Bacterial Pathogens $400 Question Typhoid fever is a disease caused by a gram-negative bacterium that produces a. An exotoxin b. A capsule c. An endotoxin d. Hyaluronidase

19. Topic 2: Bacterial Pathogens $400 Answer Typhoid fever is a disease caused by a gram-negative bacterium that produces a. An exotoxin b. A capsule c. An endotoxin (correct answer) d. Hyaluronidase

20. Topic 2: Bacterial Pathogens $500 Question Clostridium tetani causes the disease tetanus because it produces a. An endotoxin b. An exotoxin c. A capsule d. An enzyme

21. Topic 2: Bacterial Pathogens $500 Answer Clostridium tetani causes the disease tetanus because it produces a. An endotoxin b. An exotoxin (correct answer) c. A capsule d. An enzyme

22. Topic 3: Viral Pathogens$100 Question Which of the following allows viruses to gain access to target cells? a. Fimbriae b. Attachment sites c. Inclusion bodies d. Capsids

23. Topic 3: Viral Pathogens $100 Answer Which of the following allows viruses to gain access to target cells? a. Fimbriae b. Attachment sites (correct answer) c. Inclusion bodies d. Capsids

24. Topic 3: Viral Pathogens $200 Question Poliovirus utilizes the following portal of entry: a. Mucous membranes b. Parenteral c. Skin d. Blood

25. Topic 3: Viral Pathogens $200 Answer Poliovirus utilizes the following portal of entry: a. Mucous membranes (correct answer) b. Parenteral c. Skin d. Blood

26. Topic 3: Viral Pathogens $300 Question Which of the following refers to the visible effects of a viral infection? a. Lysogenic conversion b. Lysogenic effects c. Cytopathic effects d. Cytopathic conversion

27. Topic 3: Viral Pathogens $300 Answer Which of the following refers to the visible effects of a viral infection? a. Lysogenic conversion b. Lysogenic effects c. Cytopathic effects (correct answer) d. Cytopathic conversion

28. Topic 3: Viral Pathogens $400 Question What are the granules found in the cytoplasm or nucleus of some infected cells? a. Ribosomes b. Mitochondria c. Lysosomes d. Inclusion bodies

29. Topic 3: Viral Pathogens $400 Answer What are the granules found in the cytoplasm or nucleus of some infected cells? a. Ribosomes b. Mitochondria c. Lysosomes d. Inclusion bodies (correct answer)

30. Topic 3: Viral Pathogens $500 Question Bacteriophages can contribute to bacterial virulence because they can a. Carry plasmids b. Produce toxins c. Give new gene sequences to the host bacteria d. Kill the bacteria causing release of endotoxins

31. Topic 3: Viral Pathogens $500 Answer Bacteriophges can contribute to bacterial virulence because they can a. Carry plasmids b. Produce toxins c. Give new gene sequences to the host bacteria (correct answer) d. Kill the bacteria causing release of endotoxins

32. Topic 4: Eukaryotic Organisms$100 Question Which of the following DOES NOT contribute to fungal disease? a. Cell walls b. Toxins c. Capsules d. Allergic response of the host

33. Topic 4: Eukaryotic Organisms $100 Answer Which of the following DOES NOT contribute to fungal disease? a. Cell walls (correct answer) b. Toxins c. Capsules d. Allergic response of the host

34. Topic 4: Eukaryotic Organisms $200 Question Which of the following eukaryotic organisms have the ability to produce metabolic products that are toxic to human hosts? a. Helminths b. Plants c. Fungi d. Protozoa

35. Topic 4: Eukaryotic Organisms $200 Answer Which of the following eukaryotic organisms have the ability to produce metabolic products that are toxic to human hosts? a. Helminths b. Plants c. Fungi (correct answer) d. Protozoa

36. Topic 4: Eukaryotic Organisms $300 Question Which of these toxins is an alkaloid that can cause hallucinations resembling those produced by LSD? a. Aflatoxin b. Ergot c. Phalloidin d. Amanitin

37. Topic 4: Eukaryotic Organisms $300 Answer Which of these toxins is an alkaloid that can cause hallucinations resembling those produced by LSD? a. Aflatoxin b. Ergot (correct answer) c. Phalloidin d. Amanitin

38. Topic 4: Eukaryotic Organisms $400 Question Which of the following eukaryotic organisms can attach to a host by a sucking disc? a. Candida albicans b. Entamoeba histolytica c. Giardia lamblia d. Plasmodium malariae

39. Topic 4: Eukaryotic Organisms $400 Answer Which of the following eukaryotic organisms can attach to a host by a sucking disc? a. Candida albicans b. Entamoeba histolytica c. Giardia lamblia (correct answer) d. Plasmodium malariae

40. Topic 4: Eukaryotic Organisms $500 Question What is the causative agent of elephantiasis? a. Entamoeba histolytica b. Candida albicans c. Cryptococcus neoformans d. Wuchereria bancrofti

41. Topic 4: Eukaryotic Organisms $500 Answer What is the causative agent of elephantiasis? a. Entamoeba histolytica b. Candida albicans c. Cryptococcus neoformans d. Wuchereria bancrofti (correct answer)

42. Topic 5: Portal of Exit$100 Question Arthropods provide a portal of exit for microbes in a. Skin b. Blood c. Respiratory tract d. Genitourinary tract

43. Topic 5: Portal of Exit $100 Answer Arthropods provide a portal of exit for microbes in a. Skin b. Blood (correct answer) c. Respiratory tract d. Genitourinary tract

44. Topic 5: Portal of Exit $200 Question Sneezing is a portal of exit for the a. Gastrointestinal tract b. Respiratory tract c. Blood d. Genitourinary tract

45. Topic 5: Portal of Exit $200 Answer Sneezing is a portal of exit for the a. Gastrointestinal tract b. Respiratory tract (correct answer) c. Blood d. Genitourinary tract

46. Topic 5: Portal of Exit $300 Question Pathogens that are discharged from the respiratory tract cause the following disease: a. Salmonella b. Whooping cough c. Poliomyelitis d. Rabies

47. Topic 5: Portal of Exit $300 Answer Pathogens that are discharged from the respiratory tract cause the following disease: a. Salmonella b. Whooping cough (correct answer) c. Poliomyelitis d. Rabies

48. Topic 5: Portal of Exit $400 Question Infections transmitted from the skin include a. Yaws b. Tularemia c. Yellow fever d. Plague

49. Topic 5: Portal of Exit $400 Answer Infections transmitted from the skin include a. Yaws (correct answer) b. Tularemia c. Yellow fever d. Plague

50. Topic 5: Portal of Exit $500 Question The following disease can be transmitted by a biting insect: a. Shigellosis b. Mumps c. Tularemia d. Chickenpox

51. Topic 5: Portal of Exit $500 Answer The following disease can be transmitted by a biting insect: a. Shigellosis b. Mumps c. Tularemia (correct answer) d. Chickenpox

52. FINAL ROUND Question Septic shock can result from using antibiotics to treat a. Gram-negative bacterial infections b. Fungal infections c. Viral infections d. Protozoan infections

53. FINAL ROUND Answer Septic shock can result from using antibiotics to treat a. Gram-negative bacterial infections (correct answer) b. Fungal infections c. Viral infections d. Protozoan infections