Question 1

While exotoxin production is most generally associated with Gram-positive bacteria,some Gram-negative bacteria also produce exotoxins.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following features of a pathogen is not considered to be a virulence factor when establishing infection within host?

Accepted Answer

A)  Pigment production
B)  Attachment fimbriae
C)  Slime layer
D)  Protein spikesE) All of the above
F) C) and D)

Question 3

Vector-borne transmission can be either external or internal.In external (mechanical) transmission,the pathogen is carried

Accepted Answer

A)  on a fomite.
B)  on the body surface of a vector.
C)  within the vector.
D)  All of the choices are correct.E) A) and D)
F) A) and C)

Question 4

If a symbiont either harms or lives at the expense of another organism,the relationship is called _________.

Accepted Answer

A)  symbiosis
B)  parasitism
C)  commensalism
D)  pathogenicityE) B) and C)
F) A) and D)

Question 5

The capacity of an organism to produce a toxin is called __________.

Accepted Answer

The answer of The capacity of an organism to produce...

Question 6

Your brother mentions that several days ago he began to feel as if he was coming down with a cold,but now is no longer experiencing any signs or symptoms and feels fine.Having just studied the infectious disease process in your microbiology course,you immediately recognize that he is describing the phase of illness.

Accepted Answer

A)  prodromal
B)  convalescent
C)  acute
D)  incubationE) A) and D)
F) B) and D)

Question 7

A(n)__________ is an organism that transfers pathogens from one host to another.

Accepted Answer

The answer of A(n)__________ is an organism that transfers pathogens...

Question 8

One example of infectious disease transmittion by a fomite is

Accepted Answer

A)  a child developing a cold after playing with a toy that harbored rhinovirus.
B)  a baby born with congenital syphilis from an infected mother.
C)  a teenager with severe acne due to propionibacteria growing in sebaceous glands.
D)  None of the choices are correct.E) C) and D)
F) A) and C)

Question 9

Which of the following is not a biological effect associated with endotoxin?

Accepted Answer

A)  Coagulation
B)  Paralysis
C)  Fever
D)  FibrinolysisE) All of the above
F) A) and B)

Question 10

Colonization specifically refers to the multiplication of a pathogen on or within a host,and includes the resulting tissue invasion and damage.

Accepted Answer

A) True 
 B)False

Question 11

An inanimate object that may be contaminated with a pathogen is called a ________.

Accepted Answer

A)  vector
B)  fomite
C)  zoonoses
D)  None of the choices are correct.E) A) and D)
F) None of the above

Question 12

All of the following situations are passive modes of penetration for the invasion of host tissues by opportunistic pathogens EXCEPT

Accepted Answer

A)  a child falling and scraping her knee.
B)  a firefighter receiving third-degree burns on the skin.
C)  a hiker being bitten by a tick.
D)  a bacterium adhering to intravenous tubing,forming a biofilm.E) B) and C)
F) A) and B)

Question 13

A neutralizing antibody against a toxin is called a(n)__________.

Accepted Answer

The answer of A neutralizing antibody against a toxin is...

Question 14

Inanimate materials involved in pathogen transmission are called reservoirs.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following has no effect on the outcome of the host-parasite relationship?

Accepted Answer

A)  The number of parasites on or in the host
B)  The virulence of the parasite
C)  The defenses of the host
D)  All of the choices are correct.E) All of the above
F) B) and D)

Question 16

An __________ pathogen can cause disease in a host with impaired resistance.

Accepted Answer

The answer of An __________ pathogen can cause disease in...

Question 17

Transfer of pathogens from host to environment and then to another host are said to be transmitted _________.

Accepted Answer

The answer of Transfer of pathogens from host to environment...

Question 18

Which of the following is not a characteristic of lipid A?

Accepted Answer

A)  Heat stable
B)  Toxic in nanogram amounts
C)  Weakly immunogenic
D)  NeurotoxicE) All of the above
F) A) and B)

Question 19

Place the events associated with each stage of infectious disease in the correct order with regard to time.
Prodromal stage
Incubation period
Convalescence
Illness period

Accepted Answer

The answer of Place the events associated with each stage...

Question 20

Once a pathogen has infected the host,__________________ is a measure of the pathogen's ability to spread to adjacent or other tissues.

Accepted Answer

The answer of Once a pathogen has infected the host,__________________...

Exam 35: Pathogenicity and Infection

Transfer of pathogens from host to environment and then to another host are said to be transmitted _________.

Correct Answer
verified

Which of the following has no effect on the outcome of the host-parasite relationship?

Correct Answer
verified

Place the events associated with each stage of infectious disease in the correct order with regard to time. Prodromal stage Incubation period Convalescence Illness period

Correct Answer
verified

Once a pathogen has infected the host,__________________ is a measure of the pathogen's ability to spread to adjacent or other tissues.

Correct Answer
verified

Which of the following is not a biological effect associated with endotoxin?

Correct Answer
verified

An __________ pathogen can cause disease in a host with impaired resistance.

Correct Answer
verified

Colonization specifically refers to the multiplication of a pathogen on or within a host,and includes the resulting tissue invasion and damage.

Correct Answer
verified

Which of the following features of a pathogen is not considered to be a virulence factor when establishing infection within host?

Correct Answer
verified

The capacity of an organism to produce a toxin is called __________.

Correct Answer
verified

Correct Answer
verified

Which of the following is not a characteristic of lipid A?

Correct Answer
verified

If a symbiont either harms or lives at the expense of another organism,the relationship is called _________.

Correct Answer
verified

One example of infectious disease transmittion by a fomite is

Correct Answer
verified

While exotoxin production is most generally associated with Gram-positive bacteria,some Gram-negative bacteria also produce exotoxins.

Correct Answer
verified

Vector-borne transmission can be either external or internal.In external (mechanical) transmission,the pathogen is carried

Correct Answer
verified

A(n)__________ is an organism that transfers pathogens from one host to another.

Correct Answer
verified

A neutralizing antibody against a toxin is called a(n)__________.

Correct Answer
verified

Inanimate materials involved in pathogen transmission are called reservoirs.

Correct Answer
verified

An inanimate object that may be contaminated with a pathogen is called a ________.

Correct Answer
verified

All of the following situations are passive modes of penetration for the invasion of host tissues by opportunistic pathogens EXCEPT

Correct Answer
verified

Exam 35: Pathogenicity and Infection

Transfer of pathogens from host to environment and then to another host are said to be transmitted _________.

Correct AnswerverifiedShow Answer

Which of the following has no effect on the outcome of the host-parasite relationship?

Correct AnswerverifiedShow Answer

Place the events associated with each stage of infectious disease in the correct order with regard to time. Prodromal stage Incubation period Convalescence Illness period

Correct AnswerverifiedShow Answer

Once a pathogen has infected the host,__________________ is a measure of the pathogen's ability to spread to adjacent or other tissues.

Correct AnswerverifiedShow Answer

Which of the following is not a biological effect associated with endotoxin?

Correct AnswerverifiedShow Answer

An __________ pathogen can cause disease in a host with impaired resistance.

Correct AnswerverifiedShow Answer

Colonization specifically refers to the multiplication of a pathogen on or within a host,and includes the resulting tissue invasion and damage.

Correct AnswerverifiedShow Answer

Which of the following features of a pathogen is not considered to be a virulence factor when establishing infection within host?

Correct AnswerverifiedShow Answer

The capacity of an organism to produce a toxin is called __________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following is not a characteristic of lipid A?

Correct AnswerverifiedShow Answer

If a symbiont either harms or lives at the expense of another organism,the relationship is called _________.

Correct AnswerverifiedShow Answer

One example of infectious disease transmittion by a fomite is

Correct AnswerverifiedShow Answer

While exotoxin production is most generally associated with Gram-positive bacteria,some Gram-negative bacteria also produce exotoxins.

Correct AnswerverifiedShow Answer

Vector-borne transmission can be either external or internal.In external (mechanical) transmission,the pathogen is carried

Correct AnswerverifiedShow Answer

A(n)__________ is an organism that transfers pathogens from one host to another.

Correct AnswerverifiedShow Answer

A neutralizing antibody against a toxin is called a(n)__________.

Correct AnswerverifiedShow Answer

Inanimate materials involved in pathogen transmission are called reservoirs.

Correct AnswerverifiedShow Answer

An inanimate object that may be contaminated with a pathogen is called a ________.

Correct AnswerverifiedShow Answer

All of the following situations are passive modes of penetration for the invasion of host tissues by opportunistic pathogens EXCEPT

Correct AnswerverifiedShow Answer

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