Introduction Microbiology
Microbiology: An Introduction, 10e (Tortora et al.) Chapter 14 Principles of Disease and Epidemiology Test Bank 1) A commensal bacterium A) Does not receive any benefit from its host. B) Is beneficial to its host. C) May be an opportunistic pathogen. D) Does not infect its host. E) B and D only. Answer: C
media. B) Some microorganisms don't cause the same disease in laboratory animals. C) Some microorganisms cause different symptoms under different conditions. D) Some microorganisms can't be observed. E) Not all diseases are caused by microorganisms. Answer: E
2) Which of the following statements is true? A) Symbiosis refers to different organisms living together. B) Members of a symbiotic relationship cannot live without each other. C) A parasite is not in symbiosis with its host. D) Symbiosis refers to different organisms living together and benefiting from each other. E) At least one member must benefit in a symbiotic relationship. Answer: A
6) Which of the following diseases is NOT spread by droplet infection? A) Botulism B) Tuberculosis C) Measles D) Common cold E) Diphtheria Answer: A
3) A nosocomial infection is A) Always present but is inapparent at the time of hospitalization. B) Acquired during the course of hospitalization. C) Always caused by medical personnel. D) Only a result of surgery. E) Always caused by pathogenic bacteria. Answer: B
7) Mechanical transmission differs from biological transmission in that mechanical transmission A) Doesn't require an arthropod. B) Involves fomites. C) Doesn't involve specific diseases. D) Requires direct contact. E) Doesn't work with noncommunicable diseases. Answer: C
4) The major significance of Koch's work was that A) Microorganisms are present in a diseased animal. B) Diseases can be transmitted from one animal to another. C) Microorganisms can be cultured. D) Microorganisms cause disease. E) Microorganisms are the result of disease. Answer: D
8) Which of the following definitions is
media. B) Some microorganisms don't cause the same disease in laboratory animals. C) Some microorganisms cause different symptoms under different conditions. D) Some microorganisms can't be observed. E) Not all diseases are caused by microorganisms. Answer: E
2) Which of the following statements is true? A) Symbiosis refers to different organisms living together. B) Members of a symbiotic relationship cannot live without each other. C) A parasite is not in symbiosis with its host. D) Symbiosis refers to different organisms living together and benefiting from each other. E) At least one member must benefit in a symbiotic relationship. Answer: A
6) Which of the following diseases is NOT spread by droplet infection? A) Botulism B) Tuberculosis C) Measles D) Common cold E) Diphtheria Answer: A
3) A nosocomial infection is A) Always present but is inapparent at the time of hospitalization. B) Acquired during the course of hospitalization. C) Always caused by medical personnel. D) Only a result of surgery. E) Always caused by pathogenic bacteria. Answer: B
7) Mechanical transmission differs from biological transmission in that mechanical transmission A) Doesn't require an arthropod. B) Involves fomites. C) Doesn't involve specific diseases. D) Requires direct contact. E) Doesn't work with noncommunicable diseases. Answer: C
4) The major significance of Koch's work was that A) Microorganisms are present in a diseased animal. B) Diseases can be transmitted from one animal to another. C) Microorganisms can be cultured. D) Microorganisms cause disease. E) Microorganisms are the result of disease. Answer: D
8) Which of the following definitions is