Question 1

The term infection refers to _______.

Accepted Answer

A)   microorganisms colonizing the body
B)   contact with microorganisms
C)   contact with pathogens
D)   pathogens penetrating host defensesE) All of the above
F) C) and D)

Question 2

John Snow famously traced a London outbreak of cholera to a pump on Broad Street. This cholera outbreak was an example of a _________ epidemic.

Accepted Answer

A)   point-source
B)   propagated
C)   common-sourceD) B) and C)
E) A) and B)

Question 3

Since the 1970s, approximately 40 new infectious disease agents have been discovered, including SARS, chikungunya and Zika. The ability of these agents to spread rapidly and cause global concern is due to all of the following except _______.

Accepted Answer

A)   individuals are traveling more frequently and farther distances than in the previous half- century
B)   communities are becoming more sparsely populated
C)   communities are spreading into rural areas/wildlife habitats
D)   communities are becoming more densely populatedE) A) and D)
F) A) and C)

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

The difference between the terms pathogenicity and virulence is that _______.

Accepted Answer

A)   pathogenic organisms cause disease, virulent organisms do not
B)   virulent organisms cause disease, pathogens do not
C)   pathogens cause disease and their virulence describes the degree of pathogenicity
D)   virulent organisms cause disease and their pathogenicity describes the degree of disease manifestationsE) C) and D)
F) A) and B)

Question 6

The term _______ refers to the presence of small numbers of bacteria in the blood.

Accepted Answer

A)   bacteremia
B)   septicemia
C)   viremia
D)   toxemiaE) B) and C)
F) A) and B)

Question 7

Your patient has a rash, a fever, and a very high white blood cell count. Blood specimens are taken, put into culture bottles, and sent down to the microbiology lab for incubation and analysis. Select the statement that best re?ects why microbial analysis of blood is an important step in patient diagnosis.

Accepted Answer

A)   Microbial growth in blood samples may indicate sepsis.
B)   A few bacterial cells in a blood sample are no big deal and should be ignored.
C)   Blood specimens are often obtained through poor aseptic technique by the healthcare worker: this is documentation of their failure to employ proper universal precautions.
D)   A lack of microbes in the blood means that the patient's health is critical.E) A) and C)
F) All of the above

Question 8

Which of the following is the endotoxin?

Accepted Answer

A)   Hemolysin
B)   Hyaluronidase
C)   Streptokinase
D)   Collagenase
E)   LipopolysaccharideF) A) and E)
G) B) and C)

Question 9

All communicable diseases ______.

Accepted Answer

A)   are contagious
B)   only occur in animals
C)   are caused by microorganisms or their products
D)   are caused by vectors
E)   involve viruses as the pathogenF) A) and B)
G) B) and E)

Question 10

Which genus is resident biota of the mouth, large intestine, and within the vagina from puberty to menopause?

Accepted Answer

A)   Lactobacillus
B)   Treponema
C)   Haemophilus
D)   Escherichia
E)   ClostridiumF) B) and C)
G) All of the above

Question 11

Exotoxins ______.

Accepted Answer

A)   are secreted by pathogenic organisms
B)   are bound to the membrane of pathogenic organisms
C)   are bound to the cell wall of pathogenic organisms
D)   cause more damage than endotoxins
E)   are host speci?cF) C) and D)
G) None of the above

Question 12

The su?x -emia means ______.

Accepted Answer

A)   blood
B)   a disease or morbid process
C)   an in?ammation
D)   tumor
E)   pertaining toF) C) and D)
G) B) and C)

Question 13

The subjective evidence of disease sensed by the patient is termed a/an ______.

Accepted Answer

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

Question 14

The stage of an infectious disease when speciﬁc signs and symptoms are seen and the pathogen is at peak activity is the ______.

Accepted Answer

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

Question 15

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 B)
G) C) and D)

Question 16

Treponema pallidum is the bacterium that causes syphilis. The gram-negative spirochete has never been cultured on bacteriological media. Select the statement that most accurately describes this disease-causing microbe.

Accepted Answer

A)   There is no way to perform an epidemiological study on this disease.
B)   Koch's postulates cannot be ful?lled for this disease.
C)   Because the bacterium cannot be grown, there is no way to characterize the organism as to staining features, biochemical test reactions, molecular testing, etc.
D)   There is no satisfactory way to identify the disease without being able to grow it.E) B) and C)
F) C) and D)

Exam 13: Microbe-Human Interactions: Health and Disease

The subjective evidence of disease sensed by the patient is termed a/an ______.

Correct Answer
verified

The term infection refers to _______.

Correct Answer
verified

The stage of an infectious disease when speciﬁc signs and symptoms are seen and the pathogen is at peak activity is the ______.

Correct Answer
verified

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

Correct Answer
verified

Which of the following is the endotoxin?

Correct Answer
verified

Correct Answer
verified

Treponema pallidum is the bacterium that causes syphilis. The gram-negative spirochete has never been cultured on bacteriological media. Select the statement that most accurately describes this disease-causing microbe.

Correct Answer
verified

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 Answer
verified

Which genus is resident biota of the mouth, large intestine, and within the vagina from puberty to menopause?

Correct Answer
verified

The term _______ refers to the presence of small numbers of bacteria in the blood.

Correct Answer
verified

John Snow famously traced a London outbreak of cholera to a pump on Broad Street. This cholera outbreak was an example of a _________ epidemic.

Correct Answer
verified

The difference between the terms pathogenicity and virulence is that _______.

Correct Answer
verified

Since the 1970s, approximately 40 new infectious disease agents have been discovered, including SARS, chikungunya and Zika. The ability of these agents to spread rapidly and cause global concern is due to all of the following except _______.

Correct Answer
verified

Exotoxins ______.

Correct Answer
verified

All communicable diseases ______.

Correct Answer
verified

The su?x -emia means ______.

Correct Answer
verified

Exam 13: Microbe-Human Interactions: Health and Disease

The subjective evidence of disease sensed by the patient is termed a/an ______.

Correct AnswerverifiedShow Answer

The term infection refers to _______.

Correct AnswerverifiedShow Answer

The stage of an infectious disease when speciﬁc signs and symptoms are seen and the pathogen is at peak activity is the ______.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is the endotoxin?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Treponema pallidum is the bacterium that causes syphilis. The gram-negative spirochete has never been cultured on bacteriological media. Select the statement that most accurately describes this disease-causing microbe.

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

Which genus is resident biota of the mouth, large intestine, and within the vagina from puberty to menopause?

Correct AnswerverifiedShow Answer

The term _______ refers to the presence of small numbers of bacteria in the blood.

Correct AnswerverifiedShow Answer

John Snow famously traced a London outbreak of cholera to a pump on Broad Street. This cholera outbreak was an example of a _________ epidemic.

Correct AnswerverifiedShow Answer

The difference between the terms pathogenicity and virulence is that _______.

Correct AnswerverifiedShow Answer

Since the 1970s, approximately 40 new infectious disease agents have been discovered, including SARS, chikungunya and Zika. The ability of these agents to spread rapidly and cause global concern is due to all of the following except _______.

Correct AnswerverifiedShow Answer

Exotoxins ______.

Correct AnswerverifiedShow Answer

All communicable diseases ______.

Correct AnswerverifiedShow Answer

The su?x -emia means ______.

Correct AnswerverifiedShow Answer

Correct Answer
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