Question 1

Microbial hyaluronidase, coagulase, and streptokinase are examples of _______.

Accepted Answer

A)   adhesive factors
B)   exotoxins
C)   hemolysins
D)   antiphagocytic factors
E)   exoenzymesF) None of the above
G) B) and D)

Question 2

TORCH is an acronym that represents the most common ______.

Accepted Answer

A)   genera of resident biota
B)   sexually transmitted infections
C)   portals of entry
D)   vectors
E)   infections of the fetus and neonateF) B) and C)
G) B) and D)

Question 3

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) None of the above
G) A) and C)

Question 4

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) A) and E)

Question 5

Which of the following is not correct terminology used for resident biota?

Accepted Answer

A)   Pathogenic biota
B)   Normal biota
C)   Indigenous biota
D)   Normal microbiota
E)   CommensalsF) A) and D)
G) A) and C)

Question 6

Latency is a dormant state of an infectious agent.

Accepted Answer

A) True 
 B)False

Question 7

Exotoxins are _______.

Accepted Answer

A)   proteins secreted by living bacterial cells
B)   only released after a cell is damaged or lysed
C)   antiphagocytic factors
D)   secretions that always target nervous tissue
E)   lipopolysaccharidesF) A) and B)
G) A) and D)

Question 8

The greatest number of pathogens enter the body through the ______.

Accepted Answer

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

Question 9

Bacterial toxins are chemical products made by bacteria. A person ingests some honey containing Clostridium botulinum. The C. botulinum is actively growing and releases toxin in the honey. The person becomes ill from ingesting the toxin. This is an example of a/an ______.

Accepted Answer

A)   intoxication
B)   toxemia
C)   hemolysin
D)   pandemic
E)   infectionF) A) and C)
G) C) and D)

Question 10

When would Koch's postulates be utilized?

Accepted Answer

A)   To determine the cause of a patient's illness in a hospital microbiology lab
B)   To develop a new antibiotic in a pharmaceutical lab
C)   To determine the cause of a new disease in a microbiology research lab
D)   To formulate a vaccine against a new pathogen in a genetic engineering lab
E)   Whenever the scienti?c method cannot be used to investigate a microbiological problemF) None of the above
G) C) and E)

Question 11

Someone who inconspicuously harbors a pathogen and spreads it to others is a _______.

Accepted Answer

A)   fomite
B)   carrier
C)   vector
D)   reservoir
E)   sourceF) C) and E)
G) All of the above

Question 12

The dried residues of ﬁne droplets from mucus or saliva that harbor and transmit pathogen are ________.

Accepted Answer

A)   fomites
B)   aerosols
C)   mechanical vectors
D)   droplet nuclei
E)   biological vectorsF) All of the above
G) B) and C)

Question 13

Which of the following is not a structure used for bacterial adhesion?

Accepted Answer

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

Question 14

Lipopolysaccharide of the outer membrane of gram-negative cell walls is called ______.

Accepted Answer

A)   exotoxin
B)   endotoxin
C)   enterotoxin
D)   leukocidin
E)   hemolysinF) C) and D)
G) A) and C)

Question 15

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) A) and B)
G) C) and D)

Question 16

Physicians are required to report new cases of gonorrhea to the CDC, whereas new cases of genital herpes are not noti?able. Evaluate the statements below and choose which statement best represents why some diseases are reportable and others are not.

Accepted Answer

A)   Gonorrhea is treatable with antibiotics and therefore may develop resistance; genital herpes is not treatable with antibiotics.
B)   Genital herpes is less deadly than gonorrhea.
C)   Gonorrhea is more contagious than genital herpes.
D)   Gonorrhea affects certain populations and geographic areas, whereas genital herpes does not.E) A) and B)
F) A) and C)

Question 17

Infections that go unnoticed because there are no symptoms are called ________.

Accepted Answer

A)   syndromes
B)   malaise
C)   inﬂammation
D)   asymptomatic
E)   secondary infectionsF) A) and B)
G) None of the above

Question 18

If you were a bacterial cell, which of the following would be the most beneﬁcial for you to have or be able to make for the survival of your species?

Accepted Answer

A)   Endospore
B)   Cilia
C)   Pilus
D)   ExotoxinE) B) and D)
F) A) and C)

Question 19

Once a microbe has entered a host, what process performed by certain white blood cells will attempt to destroy the microbes?

Accepted Answer

A)   Phagocytosis
B)   Adhesion
C)   Encapsulation
D)   Margination
E)   ExocytosisF) B) and C)
G) None of the above

Question 20

Diseases can re-emerge for a variety of reasons. Evaluate the following statements and choose the one that does not provide evidence for a re-emergence.

Accepted Answer

A)   Pathogens evolve over time.
B)   Climate change inﬂuences arthropods to expand their geographical areas.
C)   Humans have avoided animal habitats.
D)   Agents of bioterrorism have been introduced into a population.E) All of the above
F) None of the above

Exam 13: Microbe-Human Interactions: Health and Disease

Resident biota are found in/on the ______.

Correct AnswerverifiedShow Answer

Someone who inconspicuously harbors a pathogen and spreads it to others is a _______.

Correct AnswerverifiedShow Answer

The dried residues of ﬁne droplets from mucus or saliva that harbor and transmit pathogen are ________.

Correct AnswerverifiedShow Answer

Bacterial toxins are chemical products made by bacteria. A person ingests some honey containing Clostridium botulinum. The C. botulinum is actively growing and releases toxin in the honey. The person becomes ill from ingesting the toxin. This is an example of a/an ______.

Correct AnswerverifiedShow Answer

Lipopolysaccharide of the outer membrane of gram-negative cell walls is called ______.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

If you were a bacterial cell, which of the following would be the most beneﬁcial for you to have or be able to make for the survival of your species?

Correct AnswerverifiedShow Answer

Physicians are required to report new cases of gonorrhea to the CDC, whereas new cases of genital herpes are not noti?able. Evaluate the statements below and choose which statement best represents why some diseases are reportable and others are not.

Correct AnswerverifiedShow Answer

Which of the following is not correct terminology used for resident biota?

Correct AnswerverifiedShow Answer

Which of the following is not a structure used for bacterial adhesion?

Correct AnswerverifiedShow Answer

Infections that go unnoticed because there are no symptoms are called ________.

Correct AnswerverifiedShow Answer

Microbial hyaluronidase, coagulase, and streptokinase are examples of _______.

Correct AnswerverifiedShow Answer

When would Koch's postulates be utilized?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Exotoxins are _______.

Correct AnswerverifiedShow Answer

TORCH is an acronym that represents the most common ______.

Correct AnswerverifiedShow Answer

The greatest number of pathogens enter the body through the ______.

Correct AnswerverifiedShow Answer

Diseases can re-emerge for a variety of reasons. Evaluate the following statements and choose the one that does not provide evidence for a re-emergence.

Correct AnswerverifiedShow Answer

Once a microbe has entered a host, what process performed by certain white blood cells will attempt to destroy the microbes?

Correct AnswerverifiedShow Answer

Latency is a dormant state of an infectious agent.

Correct AnswerverifiedShow Answer

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