Question 1

Mucinase has the greatest effect on the ________.

Accepted Answer

A)  respiratory system
B)  gastrointestinal system
C)  urinary system
D)  genital system
E)  skinF) B) and D)
G) None of the above

Question 2

The intermediary object or individual from which the infectious agent is actually acquired is termed the ________.

Accepted Answer

A)  fomite
B)  carrier
C)  vector
D)  reservoir
E)  sourceF) A) and C)
G) A) and B)

Question 3

It is important to understand the extent and significance of polymicrobial infections,since treating an infection with a single antibiotic for an assumed causative organism may not adequately eliminate the infection.

Accepted Answer

A) True 
 B)False

Question 4

An inanimate object that harbors and transmits a pathogen is a ________.

Accepted Answer

A)  fomite
B)  carrier
C)  vector
D)  reservoir
E)  sourceF) C) and D)
G) A) and E)

Question 5

The total number of deaths in a population due to a disease is the ________ rate.

Accepted Answer

A)  morbidity
B)  mortality
C)  incidence
D)  endemic
E)  pandemicF) B) and D)
G) C) and D)

Question 6

Nosocomial infections involve all the following except

Accepted Answer

A)  they are only transmitted by medical personnel.
B)  they often involve the patient's urinary tract and surgical incisions.
C)  the patient's resident biota can be the infectious agent.
D)  Escherichia coli and staphylococci are common infectious agents.
E)  medical and surgical asepsis help lower their occurrence.F) A) and E)
G) A) and D)

Question 7

The number of new cases of a disease in a population over a specific period of time compared with the healthy population is the ________.

Accepted Answer

A)  mortality rate
B)  morbidity rate
C)  incidence rate
D)  prevalence rate
E)  epidemic rateF) A) and E)
G) A) and B)

Question 8

Which of the following is an example of sequelae?

Accepted Answer

A)  Headache from meningitis
B)  Difficulty swallowing from a Streptococcus infection
C)  Arthritis from Lyme disease
D)  Diarrhea from Salmonella enteritidis infection
E)  All of the choices are correct.F) A) and D)
G) None of the above

Question 9

Which of the following is not a method of adhesion?

Accepted Answer

A)  Fimbriae
B)  Surface proteins
C)  Specialized receptors
D)  Adhesive slime or capsules
E)  CiliaF) D) and E)
G) B) and D)

Question 10

In a comparison of two pathogens,organism A has an infectious dose of 200,000 organisms,whereas organism B has an infectious dose of 15 organisms.  This means that organism A is much more pathogenic than organism B.

Accepted Answer

A) True 
 B)False

Question 11

The objective,measurable evidence of disease evaluated by an observer is termed a(n) ________.

Accepted Answer

A)  syndrome
B)  symptom
C)  sign
D)  pathology
E)  inflammationF) C) and D)
G) None of the above

Question 12

All of the following statements are true regarding discoveries made by the Human Microbiome Project except

Accepted Answer

A)  the genes coded by our microbiome number in the millions,whereas human cells contain approximately 21,000 genes.
B)  areas of the body once believed to be sterile,are now known to harbor microbes.
C)  the microbiota does not contain pathogens; all of the microbes in our microbiome are non-pathogenic.
D)  the composition of the microbiome has implications for the development of other,non-infectious diseases such as diabetes,obesity and asthma.
E)  bacteria,as well as viruses and fungi,make up the microbiome.F) All of the above
G) D) and E)

Question 13

The Centers for Disease Control and Prevention assigns the most virulent microbes known to cause human disease to biosafety level 4.

Accepted Answer

A) True 
 B)False

Question 14

A sign is

Accepted Answer

A)  an objective indication of disease.
B)  a subjective indication of disease.
C)  measurable by health care personnel.
D)  temperature.
E)  Both objective indication of disease and measurable by health care personnel are correct.F) C) and D)
G) B) and E)

Question 15

The subjective evidence of disease sensed by the patient is termed a(n) ________.

Accepted Answer

A)  syndrome
B)  symptom
C)  sign
D)  pathology
E)  inflammationF) A) and B)
G) D) and E)

Question 16

Septicemia means that a pathogen is present and multiplying in the blood.

Accepted Answer

A) True 
 B)False

Question 17

Fomites,food,and air serve as indirect transmission routes of pathogens.

Accepted Answer

A) True 
 B)False

Question 18

The virulence factors of a pathogen are established by how strong or weak a patient's body defenses are at the time of infection.

Accepted Answer

A) True 
 B)False

Question 19

The study of the frequency and distribution of a disease in a defined population is ________.

Accepted Answer

A)  pathology
B)  clinical microbiology
C)  medicine
D)  immunology
E)  epidemiologyF) A) and B)
G) C) and E)

Question 20

Resident biota are found in/on the ________.

Accepted Answer

A)  skin
B)  mouth
C)  nasal passages
D)  large intestine
E)  All of the choices are correct.F) B) and D)
G) A) and B)

Exam 11: Interactions Between Microbes and Humans

Septicemia means that a pathogen is present and multiplying in the blood.

Correct AnswerverifiedShow Answer

The intermediary object or individual from which the infectious agent is actually acquired is termed the ________.

Correct AnswerverifiedShow Answer

Fomites,food,and air serve as indirect transmission routes of pathogens.

Correct AnswerverifiedShow Answer

The Centers for Disease Control and Prevention assigns the most virulent microbes known to cause human disease to biosafety level 4.

Correct AnswerverifiedShow Answer

Nosocomial infections involve all the following except

Correct AnswerverifiedShow Answer

The number of new cases of a disease in a population over a specific period of time compared with the healthy population is the ________.

Correct AnswerverifiedShow Answer

Resident biota are found in/on the ________.

Correct AnswerverifiedShow Answer

It is important to understand the extent and significance of polymicrobial infections,since treating an infection with a single antibiotic for an assumed causative organism may not adequately eliminate the infection.

Correct AnswerverifiedShow Answer

Mucinase has the greatest effect on the ________.

Correct AnswerverifiedShow Answer

In a comparison of two pathogens,organism A has an infectious dose of 200,000 organisms,whereas organism B has an infectious dose of 15 organisms. This means that organism A is much more pathogenic than organism B.

Correct AnswerverifiedShow Answer

Which of the following is not a method of adhesion?

Correct AnswerverifiedShow Answer

All of the following statements are true regarding discoveries made by the Human Microbiome Project except

Correct AnswerverifiedShow Answer

An inanimate object that harbors and transmits a pathogen is a ________.

Correct AnswerverifiedShow Answer

A sign is

Correct AnswerverifiedShow Answer

The virulence factors of a pathogen are established by how strong or weak a patient's body defenses are at the time of infection.

Correct AnswerverifiedShow Answer

The total number of deaths in a population due to a disease is the ________ rate.

Correct AnswerverifiedShow Answer

The objective,measurable evidence of disease evaluated by an observer is termed a(n) ________.

Correct AnswerverifiedShow Answer

The study of the frequency and distribution of a disease in a defined population is ________.

Correct AnswerverifiedShow Answer

Which of the following is an example of sequelae?

Correct AnswerverifiedShow Answer

The subjective evidence of disease sensed by the patient is termed a(n) ________.

Correct AnswerverifiedShow Answer

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