Question 1

All diseases go through the stages known as incubation period,prodromal period,and illness.

Accepted Answer

A) True 
 B)False  False

Question 2

A syndrome is a group of symptoms and signs that collectively characterize a particular disease.

Accepted Answer

A) True 
 B)False  True

Question 3

The study of the cause of disease is known as (epidemiology/etiology/pathology).

Accepted Answer

etiology

Question 4

The degree to which a microbe is able to cause disease is known as its (morbidity/virulence/toxicity).

Accepted Answer

The answer of The degree to which a microbe is...

Question 5

Which of the following stages of an infectious disease is the most severe?

Accepted Answer

A)  the incubation period 
B)  the prodromal period 
C)  the illness period 
D)  the decline period 
E)  the convalescence period 
A)  the incubation period 
B)  the prodromal period 
C)  the illness period 
D)  the decline period 
E)  the convalescence period

Question 6

Bacterial cells with capsules are resistant to killing by phagocytes.

Accepted Answer

A) True 
 B)False

Question 7

The condition known as microbial antagonism may be defined as

Accepted Answer

A)  microorganisms that remain with a person throughout life. 
B)  a relationship between two organisms where one member harms the other. 
C)  a relationship between two organisms where only one member benefits. 
D)  an unsuccessful microbial invasion due to the presence of preexisting microbes. 
E)  a relationship between two organisms where both members benefit. 
A)  microorganisms that remain with a person throughout life. 
B)  a relationship between two organisms where one member harms the other. 
C)  a relationship between two organisms where only one member benefits. 
D)  an unsuccessful microbial invasion due to the presence of preexisting microbes. 
E)  a relationship between two organisms where both members benefit.

Question 8

In commensalism,one member of the relationship harms the other.

Accepted Answer

A) True 
 B)False

Question 9

Places in the body where there is no normal microbiota are referred to as (sterile/aseptic/axenic).

Accepted Answer

The answer of Places in the body where there is...

Question 10

A strain of Neisseria gonorrhea has a mutation which has caused it to lose the ability to produce fimbriae and become less virulent as a consequence.What function has this pathogen lost?

Accepted Answer

A)  the ability to adhere to cells of the body 
B)  the ability to move from one location in the body to another 
C)  the ability to produce an endotoxin 
D)  the ability to establish a latent infection 
E)  the ability to prevent phagocytes killing it 
A)  the ability to adhere to cells of the body 
B)  the ability to move from one location in the body to another 
C)  the ability to produce an endotoxin 
D)  the ability to establish a latent infection 
E)  the ability to prevent phagocytes killing it

Question 11

Which of the following statements regarding the demonstration of the etiology of disease is FALSE?

Accepted Answer

A)  The suspect agent must be present in all cases of disease. 
B)  The suspect agent must cause the disease under investigation when introduced into a susceptible host organism. 
C)  The suspect agent must be isolated and cultured in the laboratory. 
D)  It must be possible to reisolate the suspect agent from the infected experimental host. 
E)  The suspect agent must be the only potential pathogen present in disease cases. 
A)  The suspect agent must be present in all cases of disease. 
B)  The suspect agent must cause the disease under investigation when introduced into a susceptible host organism. 
C)  The suspect agent must be isolated and cultured in the laboratory. 
D)  It must be possible to reisolate the suspect agent from the infected experimental host. 
E)  The suspect agent must be the only potential pathogen present in disease cases.

Question 12

A healthcare-associated (nosocomial)disease is a disease acquired

Accepted Answer

A)  by being bitten by an infected insect. 
B)  by eating contaminated food. 
C)  by using a contaminated needle. 
D)  in a health care facility. 
E)  by having unprotected sexual intercourse. 
A)  by being bitten by an infected insect. 
B)  by eating contaminated food. 
C)  by using a contaminated needle. 
D)  in a health care facility. 
E)  by having unprotected sexual intercourse.

Question 13

Commensalism is best described as a(n)

Accepted Answer

A)  unsuccessful microbial invasion due to the presence of preexisting microbes. 
B)  relationship between two organisms where only one member benefits and the other is unharmed. 
C)  relationship between two organisms where both members benefit. 
D)  relationship in which a microorganism causes disease. 
E)  source of contamination. 
A)  unsuccessful microbial invasion due to the presence of preexisting microbes. 
B)  relationship between two organisms where only one member benefits and the other is unharmed. 
C)  relationship between two organisms where both members benefit. 
D)  relationship in which a microorganism causes disease. 
E)  source of contamination.

Question 14

Which of the following is the correct sequence of a disease process?

Accepted Answer

A)  convalescence, incubation, prodromal period, illness, decline 
B)  prodromal period, convalescence, incubation, illness, decline 
C)  incubation, convalescence, prodromal period, illness, decline 
D)  incubation, prodromal period, illness, decline, convalescence 
E)  illness, convalescence, incubation, prodromal period, decline 
A)  convalescence, incubation, prodromal period, illness, decline 
B)  prodromal period, convalescence, incubation, illness, decline 
C)  incubation, convalescence, prodromal period, illness, decline 
D)  incubation, prodromal period, illness, decline, convalescence 
E)  illness, convalescence, incubation, prodromal period, decline

Question 15

A pathogen is best described as

Accepted Answer

A)  a microorganism that remains with the person throughout life. 
B)  any microorganism that causes disease. 
C)  an organism that remains in the body for a short time. 
D)  a microorganism that may cause a disease under certain circumstances. 
E)  a source of microbial contamination. 
A)  a microorganism that remains with the person throughout life. 
B)  any microorganism that causes disease. 
C)  an organism that remains in the body for a short time. 
D)  a microorganism that may cause a disease under certain circumstances. 
E)  a source of microbial contamination.

Question 16

Which of the following is an example of an exotoxin?

Accepted Answer

A)  neurotoxin 
B)  coagulase 
C)  lipid A 
D)  streptokinase 
E)  collagenase 
A)  neurotoxin 
B)  coagulase 
C)  lipid A 
D)  streptokinase 
E)  collagenase

Question 17

Describe three types of reservoirs of infectious disease in humans.Give an example disease for each type of reservoir.

Accepted Answer

for a pathogen to enter a new host,it mu

Question 18

Persons with asymptomatic infections may be (contaminants/reservoirs/zoonoses)of disease.

Accepted Answer

The answer of Persons with asymptomatic infections may be (contaminants/reservoirs/zoonoses)of...

Question 19

A reservoir isI417B418:I418

Accepted Answer

A)  a source of microbial contamination. 
B)  an environment that is free of microbes. 
C)  any microorganism that causes disease. 
D)  a condition in which organisms remain in the body for a short time. 
E)  a source of microbes for laboratory testing. 
A)  a source of microbial contamination. 
B)  an environment that is free of microbes. 
C)  any microorganism that causes disease. 
D)  a condition in which organisms remain in the body for a short time. 
E)  a source of microbes for laboratory testing.

Question 20

Among the virulence factors produced by Staphylococcus aureus are hemolysin,coagulase,hyaluronidase,and enterotoxin.Which of these factors contribute to the ability of S.aureus to invade the body?

Accepted Answer

A)  coagulase 
B)  enterotoxin 
C)  hemolysin 
D)  hyaluronidase 
E)  coagulase and hemolysin 
A)  coagulase 
B)  enterotoxin 
C)  hemolysin 
D)  hyaluronidase 
E)  coagulase and hemolysin

Exam 14: Infection, Infectious Diseases, and Epidemiology

All diseases go through the stages known as incubation period,prodromal period,and illness.

A syndrome is a group of symptoms and signs that collectively characterize a particular disease.

The study of the cause of disease is known as (epidemiology/etiology/pathology).

The degree to which a microbe is able to cause disease is known as its (morbidity/virulence/toxicity).

Which of the following stages of an infectious disease is the most severe?

Bacterial cells with capsules are resistant to killing by phagocytes.

The condition known as microbial antagonism may be defined as

In commensalism,one member of the relationship harms the other.

Places in the body where there is no normal microbiota are referred to as (sterile/aseptic/axenic).

A strain of Neisseria gonorrhea has a mutation which has caused it to lose the ability to produce fimbriae and become less virulent as a consequence.What function has this pathogen lost?

Which of the following statements regarding the demonstration of the etiology of disease is FALSE?

A healthcare-associated (nosocomial)disease is a disease acquired

Commensalism is best described as a(n)

Which of the following is the correct sequence of a disease process?

A pathogen is best described as

Which of the following is an example of an exotoxin?

Describe three types of reservoirs of infectious disease in humans.Give an example disease for each type of reservoir.

Persons with asymptomatic infections may be (contaminants/reservoirs/zoonoses)of disease.

A reservoir isI417B418:I418

Among the virulence factors produced by Staphylococcus aureus are hemolysin,coagulase,hyaluronidase,and enterotoxin.Which of these factors contribute to the ability of S.aureus to invade the body?

A Brief History of Microbiology

The Chemistry of Microbiology

Cell Structure and Function

Microscopy, Staining, and Classification

Microbial Metabolism

Microbial Nutrition and Growth

Microbial Genetics

Recombinant DNA Technology

Controlling Microbial Growth in the Environment

Controlling Microbial Growth in the Body: Antimicrobial Drugs

Characterizing and Classifying Prokaryotes

Characterizing and Classifying Eukaryotes

Characterizing and Classifying Viruses, Viroids, and Prions

Innate Immunity

Adaptive Immunity

Immunization and Immune Testing

Immune Disorders

Pathogenic Gram Positive Bacteria

Pathogenic Gram-Negative Cocci and Bacilli

Rickettsias, Chlamydias, Spirochetes, and Vibrios

Pathogenic Fungi

Parasitic Protozoa, Helminths, and Arthropod Vectors

Pathogenic DNA Viruses

Pathogenic RNA Viruses

Applied and Environmental Microbiology

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