Question 1

Enterotoxins are ______.

Accepted Answer

A)   virulence factors
B)   toxins that target the intestines
C)   proteins
D)   exotoxins
E)   All of the choices are correct.F) None of the above
G) D) and E)

Question 2

Which of the following is transmission of disease from mother to fetus?

Accepted Answer

A)   Vertical
B)   Direct
C)   Vector
D)   Droplets
E)   FomitesF) A) and E)
G) B) and E)

Question 3

Resident biota of the gastrointestinal tract include ______.

Accepted Answer

A)   Streptococcus
B)   Bacteroides
C)   Lactobacillus
D)   Haemophilus
E)   All of the choices are correct.F) A) and E)
G) None of the above

Question 4

An epigenetic change is one that occurs when a microbial cell produces a toxin or an exoenzyme that directly damages host cells.

Accepted Answer

A) True 
 B)False

Question 5

Which is not true about the Human Microbiome Project?

Accepted Answer

A)   The HMP can only identify bacteria, not viruses.
B)   The importance of the project is in analyzing the normal biota and correlating with human health and disease.
C)   The HMP is looking for pathogens as well as nonpathogens in and on the human body.
D)   Molecular biological lab techniques will be used for identi?cation rather than standard biochemical lab techniques.E) A) and B)
F) B) and D)

Question 6

When an infected person is in the incubation period, that person cannot transmit the pathogen to others.

Accepted Answer

A) True 
 B)False

Question 7

Local edema, swollen lymph nodes, fever, soreness, and abscesses are indications of ______.

Accepted Answer

A)   toxemia
B)   inﬂammation
C)   sequelae
D)   a syndrome
E)   latencyF) A) and B)
G) B) and D)

Question 8

The time from when pathogen ﬁrst enters the body and begins to multiply, until symptoms ﬁrst appear is the ______.

Accepted Answer

A)   prodromal stage
B)   convalescent stage
C)   incubation period
D)   period of invasionE) C) and D)
F) A) and B)

Question 9

Mucinase has the greatest effect on the ______.

Accepted Answer

A)   respiratory system
B)   gastrointestinal system
C)   urinary system
D)   genital system
E)   skinF) A) and B)
G) B) and D)

Question 10

In the movie "Contagion", one person who has become infected with a recombinant pathogenic virus spreads it to a large number of people with whom she comes into contact. Those people then spread it to others, and, before you know it, the disease has spread all over the world. This is an
Example of a/an _______ epidemic.

Accepted Answer

A)   point-source
B)   common-source
C)   propagated
D)   endemicE) A) and C)
F) A) and B)

Question 11

An example of an epigenetic change is ______.

Accepted Answer

A)   a microbe secreting hyaluronidase to break down host hyaluronic acid
B)   Clostridium tetani secreting the exotoxin tetanospasmin
C)   a gram-negative organism releasing lipopolysaccharide from its cell wall upon lysis
D)   a microbe that can induce changes in host DNA, resulting in suppression of defenses or weakening of individual cellsE) A) and C)
F) A) and B)

Question 12

Which of the following is not an antiphagocytic factor?

Accepted Answer

A)   Secretion of slime
B)   Production of leukocidins
C)   Adhering to the host
D)   Secretion of a capsule
E)   Ability to survive intracellularlyF) All of the above
G) C) and D)

Question 13

A fetus can get an infection when a pathogen in the mother's blood is capable of crossing the placenta to the fetal circulation and tissues.

Accepted Answer

A) True 
 B)False

Question 14

The infectious dose of Giardia is about 10 cells. This means that if less than 10 cells are ingested when taking a drink of cold mountain water, it is likely that no infection will result.

Accepted Answer

A) True 
 B)False

Question 15

The number of persons aﬄicted with an infectious disease is the _____ rate.

Accepted Answer

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

Question 16

Carriers that shed and transmit pathogens a long time after they have recovered from an infectious disease are called ______ carriers.

Accepted Answer

A)   asymptomatic
B)   passive
C)   incubation
D)   chronic
E)   convalescentF) C) and D)
G) B) and C)

Question 17

All of the following genera are considered resident biota of skin sites except ______.

Accepted Answer

A)   Escherichia
B)   Staphylococcus
C)   Corynebacterium
D)   Micrococcus
E)   CandidaF) All of the above
G) A) and D)

Question 18

Which of the following diseases are noti?able in the United States?

Accepted Answer

A)  Measles
B)  Viral-caused diarrhea
C)  Tuberculosis
D)  Rabies
E)  HIVF) Otitis mediaG) A) and F)
H) All of the above

Question 19

The initial, brief period of early, general symptoms such as fatigue and muscle aches is the ______.

Accepted Answer

A)   prodromal stage
B)   convalescent stage
C)   incubation period
D)   period of invasionE) A) and D)
F) A) and C)

Question 20

A symptom is _______.

Accepted Answer

A)   an objective indication of disease
B)   a subjective indication of disease
C)   measurable by health care personnel
D)   a temperatureE) A) and B)
F) None of the above

Exam 13: Microbe-Human Interactions: Health and Disease

Which of the following is not an antiphagocytic factor?

Correct Answer
verified

The time from when pathogen ﬁrst enters the body and begins to multiply, until symptoms ﬁrst appear is the ______.

Correct Answer
verified

Which of the following diseases are noti?able in the United States?

Correct Answer
verified

A fetus can get an infection when a pathogen in the mother's blood is capable of crossing the placenta to the fetal circulation and tissues.

Correct Answer
verified

The infectious dose of Giardia is about 10 cells. This means that if less than 10 cells are ingested when taking a drink of cold mountain water, it is likely that no infection will result.

Correct Answer
verified

Which is not true about the Human Microbiome Project?

Correct Answer
verified

Which of the following is transmission of disease from mother to fetus?

Correct Answer
verified

An example of an epigenetic change is ______.

Correct Answer
verified

The number of persons aﬄicted with an infectious disease is the _____ rate.

Correct Answer
verified

The initial, brief period of early, general symptoms such as fatigue and muscle aches is the ______.

Correct Answer
verified

An epigenetic change is one that occurs when a microbial cell produces a toxin or an exoenzyme that directly damages host cells.

Correct Answer
verified

Correct Answer
verified

Carriers that shed and transmit pathogens a long time after they have recovered from an infectious disease are called ______ carriers.

Correct Answer
verified

Resident biota of the gastrointestinal tract include ______.

Correct Answer
verified

A symptom is _______.

Correct Answer
verified

Mucinase has the greatest effect on the ______.

Correct Answer
verified

Local edema, swollen lymph nodes, fever, soreness, and abscesses are indications of ______.

Correct Answer
verified

All of the following genera are considered resident biota of skin sites except ______.

Correct Answer
verified

Enterotoxins are ______.

Correct Answer
verified

When an infected person is in the incubation period, that person cannot transmit the pathogen to others.

Correct Answer
verified

Exam 13: Microbe-Human Interactions: Health and Disease

Which of the following is not an antiphagocytic factor?

Correct AnswerverifiedShow Answer

The time from when pathogen ﬁrst enters the body and begins to multiply, until symptoms ﬁrst appear is the ______.

Correct AnswerverifiedShow Answer

Which of the following diseases are noti?able in the United States?

Correct AnswerverifiedShow Answer

A fetus can get an infection when a pathogen in the mother's blood is capable of crossing the placenta to the fetal circulation and tissues.

Correct AnswerverifiedShow Answer

The infectious dose of Giardia is about 10 cells. This means that if less than 10 cells are ingested when taking a drink of cold mountain water, it is likely that no infection will result.

Correct AnswerverifiedShow Answer

Which is not true about the Human Microbiome Project?

Correct AnswerverifiedShow Answer

Which of the following is transmission of disease from mother to fetus?

Correct AnswerverifiedShow Answer

An example of an epigenetic change is ______.

Correct AnswerverifiedShow Answer

The number of persons aﬄicted with an infectious disease is the _____ rate.

Correct AnswerverifiedShow Answer

The initial, brief period of early, general symptoms such as fatigue and muscle aches is the ______.

Correct AnswerverifiedShow Answer

An epigenetic change is one that occurs when a microbial cell produces a toxin or an exoenzyme that directly damages host cells.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Carriers that shed and transmit pathogens a long time after they have recovered from an infectious disease are called ______ carriers.

Correct AnswerverifiedShow Answer

Resident biota of the gastrointestinal tract include ______.

Correct AnswerverifiedShow Answer

A symptom is _______.

Correct AnswerverifiedShow Answer

Mucinase has the greatest effect on the ______.

Correct AnswerverifiedShow Answer

Local edema, swollen lymph nodes, fever, soreness, and abscesses are indications of ______.

Correct AnswerverifiedShow Answer

All of the following genera are considered resident biota of skin sites except ______.

Correct AnswerverifiedShow Answer

Enterotoxins are ______.

Correct AnswerverifiedShow Answer

When an infected person is in the incubation period, that person cannot transmit the pathogen to others.

Correct AnswerverifiedShow Answer

Correct Answer
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