Question 1

All of the following are true of the relationship between microorganisms and diseases except:

Accepted Answer

A) sickle cell anemia patients are resistant to malaria 
B) bacterial infections can lead to endocarditis 
C) viral infections invariably lead to nutritional deficiency 
D) infections in the brain can result in mental disease 
A) sickle cell anemia patients are resistant to malaria 
B) bacterial infections can lead to endocarditis 
C) viral infections invariably lead to nutritional deficiency 
D) infections in the brain can result in mental disease

Question 2

Noncommunicable infectious diseases:

Accepted Answer

A) are especially common among young children 
B) includes Klebsiella pneumonia which is only slightly contagious 
C) are not spread form one host to another 
D) two of these 
A) are especially common among young children 
B) includes Klebsiella pneumonia which is only slightly contagious 
C) are not spread form one host to another 
D) two of these

Question 3

All of the following are true of most diseases caused by a fungus EXCEPT:

Accepted Answer

A) fungal spores enter the body through a cut or a wound 
B) fungi could release enzymes that attack host cells 
C) fungi can digest and invade neighboring host cells 
D) fungi can use its flagellum to expel tissue fluids 
A) fungal spores enter the body through a cut or a wound 
B) fungi could release enzymes that attack host cells 
C) fungi can digest and invade neighboring host cells 
D) fungi can use its flagellum to expel tissue fluids

Question 4

Giardia intestinalis,a protozoan,possesses the following virulence factor.

Accepted Answer

A) Adhesive disc 
B) Aflatoxin 
C) Beta-hemolysin 
D) Coagulase 
A) Adhesive disc 
B) Aflatoxin 
C) Beta-hemolysin 
D) Coagulase

Question 5

Symbiosis is an association between:

Accepted Answer

A) two or more species 
B) one or two species 
C) two or more hosts 
D) no species but all hosts 
A) two or more species 
B) one or two species 
C) two or more hosts 
D) no species but all hosts

Question 6

Eradication of a given infectious disease:

Accepted Answer

A) has never been achieved 
B) only occurs with infectious agents that are adaptable 
C) is made easier when there is a lack of medical care 
D) is difficult due to political,economic and scientific barriers 
A) has never been achieved 
B) only occurs with infectious agents that are adaptable 
C) is made easier when there is a lack of medical care 
D) is difficult due to political,economic and scientific barriers

Question 7

Exotoxins:

Accepted Answer

A) are soluble substances secreted into the host bloodstream 
B) buildup after antibiotic treatment 
C) require the bacteria to die or divide 
D) consist of lipopolysaccharide (LPS) 
A) are soluble substances secreted into the host bloodstream 
B) buildup after antibiotic treatment 
C) require the bacteria to die or divide 
D) consist of lipopolysaccharide (LPS)

Question 8

A symbiotic relationship in which one species benefits from the association while the other species is not harmed but does not benefit from the relationship.

Accepted Answer

A) Parasitism 
B) Mutualism 
C) Commensalism 
D) Contamination 
A) Parasitism 
B) Mutualism 
C) Commensalism 
D) Contamination

Question 9

A viral infection that involves continued and prolonged production of viruses in a host is referred to as a/an:

Accepted Answer

A) abortive infection 
B) productive infection 
C) latent infection 
D) persistent infection 
A) abortive infection 
B) productive infection 
C) latent infection 
D) persistent infection

Question 10

Which of the following does not pertain to the mutualistic organism E.coli

Accepted Answer

A) Found in large numbers on human host 
B) Found in the human intestinal tract 
C) Synthesizes vitamin K 
D) Synthesizes blood clotting factors 
A) Found in large numbers on human host 
B) Found in the human intestinal tract 
C) Synthesizes vitamin K 
D) Synthesizes blood clotting factors

Question 11

Iatrogenic diseases:

Accepted Answer

A) include nosocomial infections 
B) have no known causes 
C) can be caused by chemicals,physical agents or viruses 
D) are present at birth 
A) include nosocomial infections 
B) have no known causes 
C) can be caused by chemicals,physical agents or viruses 
D) are present at birth

Question 12

An acute disease becomes ______ when the body cannot get rid of it; while a local disease becomes _______ when it disseminates into deeper organs and tissues.

Accepted Answer

A) contagious; systemic 
B) contagious; secondary 
C) chronic; systemic 
D) chronic; secondary 
A) contagious; systemic 
B) contagious; secondary 
C) chronic; systemic 
D) chronic; secondary

Question 13

A healthcare worker fails to follow aseptic procedures while cleaning a wound,washes his hands properly afterwards and suffers no ill effects - this is an example of:

Accepted Answer

A) commensalism 
B) infection 
C) infestation 
D) contamination 
A) commensalism 
B) infection 
C) infestation 
D) contamination

Question 14

The rapid transfer of a microbial pathogen through animals of a susceptible species _____.

Accepted Answer

A) does not change the pathogenicity 
B) increases its fitness in broth culture 
C) can increase the intensity of the disease produced by that pathogen 
D) can decrease the intensity of the disease produced by that pathogen 
A) does not change the pathogenicity 
B) increases its fitness in broth culture 
C) can increase the intensity of the disease produced by that pathogen 
D) can decrease the intensity of the disease produced by that pathogen

Question 15

The spreading of exotoxins from the site of infection via the blood is called:

Accepted Answer

A) septicemia 
B) toxemia 
C) colonization 
D) adherence 
A) septicemia 
B) toxemia 
C) colonization 
D) adherence

Question 16

All of the following refer to the normal microflora except _____.

Accepted Answer

A) no microflora is found in the fetus 
B) resident microorganisms normally do not cause disease 
C) some microorganisms are resident while others are transient 
D) resident microorganisms are found in nervous system and blood 
A) no microflora is found in the fetus 
B) resident microorganisms normally do not cause disease 
C) some microorganisms are resident while others are transient 
D) resident microorganisms are found in nervous system and blood

Question 17

Infection that does not produce a full set of signs and symptoms is called a/an:

Accepted Answer

A) mixed infection 
B) secondary infection 
C) superinfection 
D) inapparent infection 
A) mixed infection 
B) secondary infection 
C) superinfection 
D) inapparent infection

Question 18

Diseases in which permanent damage occurs produce:

Accepted Answer

A) toxemia 
B) septicemia 
C) sequelae 
D) syndromes 
A) toxemia 
B) septicemia 
C) sequelae 
D) syndromes

Question 19

A productive infection:

Accepted Answer

A) has continued and prolonged production of viruses in a host 
B) is controlled by the host immune system and later causes disease 
C) occurs when the virus enters the cell and produces offspring 
D) often leads to a viral syndrome 
A) has continued and prolonged production of viruses in a host 
B) is controlled by the host immune system and later causes disease 
C) occurs when the virus enters the cell and produces offspring 
D) often leads to a viral syndrome

Question 20

What causes the cytopathic effect (CPE)

Accepted Answer

A) Bacteria 
B) Fungi 
C) Protozoa 
D) Viruses 
A) Bacteria 
B) Fungi 
C) Protozoa 
D) Viruses

Exam 15: Host-Microbe Relationships and Disease Processes

All of the following are true of the relationship between microorganisms and diseases except:

Noncommunicable infectious diseases:

All of the following are true of most diseases caused by a fungus EXCEPT:

Giardia intestinalis,a protozoan,possesses the following virulence factor.

Symbiosis is an association between:

Eradication of a given infectious disease:

Exotoxins:

A symbiotic relationship in which one species benefits from the association while the other species is not harmed but does not benefit from the relationship.

A viral infection that involves continued and prolonged production of viruses in a host is referred to as a/an:

Which of the following does not pertain to the mutualistic organism E.coli

Iatrogenic diseases:

An acute disease becomes ______ when the body cannot get rid of it; while a local disease becomes _______ when it disseminates into deeper organs and tissues.

A healthcare worker fails to follow aseptic procedures while cleaning a wound,washes his hands properly afterwards and suffers no ill effects - this is an example of:

The rapid transfer of a microbial pathogen through animals of a susceptible species _____.

The spreading of exotoxins from the site of infection via the blood is called:

All of the following refer to the normal microflora except _____.

Infection that does not produce a full set of signs and symptoms is called a/an:

Diseases in which permanent damage occurs produce:

A productive infection:

What causes the cytopathic effect (CPE)

Scope and History of Microbiology

The Microbiome

Fundamentals of Chemistry

Microscopy and Staining

Characteristics of Prokaryotic and Eukaryotic Cells

Essential Concepts of Metabolism

Growth and Culturing of Bacteria

Microbial Genetics

Gene Transfer and Genetic Engineering

An Introduction to Taxonomy: The Bacteria

Viruses

Eukaryotic Microorganisms and Parasites

Sterilization and Disinfection

Antimicrobial Therapy

Epidemiology and Nosocomial Infections

Innate Host Defenses

Basic Principles of Adaptive Immunity and Immunization

Immune Disorders

Diseases of the Skin and Eyes; Wounds and Bites

Urogenital and Sexually Transmitted Diseases

Diseases of the Respiratory System

Oral and Gastrointestinal Diseases

Cardiovascular, Lymphatic, and Systemic Diseases

Diseases of the Nervous System

Environmental Microbiology

Applied Microbiology

Filters

An acute disease becomes when the body cannot get rid of it; while a local disease becomes _ when it disseminates into deeper organs and tissues.