Bradley W. Christian, McLennan Community College© 2016 Pearson Education, Inc.

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Chapter 15: Microbial Mechanisms of Pathogenicity

Portals of Entry

Bacterial Pathogens

Viral Pathogens

Portals ofExit

Eukaryotic Pathogens

FINAL ROUND

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Topic 1: Portals of Entry $100 Question

The easiest and MOST frequently traveled portal of entry for infectious microorganisms is the

a. parenteral route.b. respiratory tract.c. gastrointestinal tract.d. skin.

ANSWER

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Topic 1: Portals of Entry $100 Answer

The easiest and MOST frequently traveled portal of entry for infectious microorganisms is the

a. parenteral route.b. respiratory tract.c. gastrointestinal tract.d. skin.

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Topic 1: Portals of Entry $200 Question

The degree of pathogenicity of an organism is known as the

a. antigenicity.b. toxigenicity.c. virulence.d. cytopathic effect.

ANSWER

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Topic 1: Portals of Entry $200 Answer

The degree of pathogenicity of an organism is known as the

a. antigenicity.b. toxigenicity.c. virulence.d. cytopathic effect.

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Topic 1: Portals of Entry $300 Question

Which of the following is NOT an example of the parenteral route of entry?

a. conjunctivab. surgeryc. injectiond. bite

ANSWER

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Topic 1: Portals of Entry $300 Answer

Which of the following is NOT an example of the parenteral route of entry?

a. conjunctivab. surgeryc. injectiond. bite

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Topic 1: Portals of Entry $400 Question

What is the preferred portal of entry for chlamydia?

a. genitourinary tractb. gastrointestinal tractc. skind. respiratory tract

ANSWER

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Topic 1: Portals of Entry $400 Answer

What is the preferred portal of entry for chlamydia?

a. genitourinary tractb. gastrointestinal tractc. skind. respiratory tract

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Topic 1: Portals of Entry $500 Question

Communities of microbes that cling to surfaces and share available nutrients are called

a. biofilms.b. fimbriae.c. ligands.d. superantigens.

ANSWER

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Topic 1: Portals of Entry $500 Answer

Communities of microbes that cling to surfaces and share available nutrients are called

a. biofilms.b. fimbriae.c. ligands.d. superantigens.

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Topic 2: Bacterial Pathogens $100 Question

The outer portion of gram-negative cell walls contain

a. exotoxins.b. endotoxins.c. siderophores.d. exoenzymes.

ANSWER

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Topic 2: Bacterial Pathogens $100 Answer

The outer portion of gram-negative cell walls contain

a. exotoxins.b. endotoxins.c. siderophores.d. exoenzymes.

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Topic 2: Bacterial Pathogens $200 Question

What is the action of bacterial kinases?

a. to coagulate fibrinogenb. to hydrolyze hyaluronic acidc. to break down fibrind. to break down collagen

ANSWER

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Topic 2: Bacterial Pathogens $200 Answer

What is the action of bacterial kinases?

a. to coagulate fibrinogenb. to hydrolyze hyaluronic acidc. to break down fibrind. to break down collagen

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Topic 2: Bacterial Pathogens $300 Question

Exotoxins that attack liver cells are known as

a. leukotoxins.b. cytotoxins.c. hepatotoxins.d. enterotoxins.

ANSWER

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Topic 2: Bacterial Pathogens $300 Answer

Exotoxins that attack liver cells are known as

a. leukotoxins.b. cytotoxins.c. hepatotoxins.d. enterotoxins.

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Topic 2: Bacterial Pathogens $400 Question

Proteins secreted by pathogens that bind iron are known as

a. superantigens.b. siderophores.c. leukocidins.d. hemolysins.

ANSWER

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Topic 2: Bacterial Pathogens $400 Answer

Proteins secreted by pathogens that bind iron are known as

a. superantigens.b. siderophores.c. leukocidins.d. hemolysins.

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Topic 2: Bacterial Pathogens $500 Question

Toxins produced by some gram-negative bacteria that damage DNA are called

a. streptolysins.b. genotoxins.c. A-B toxins.d. membrane-disrupting toxins.

ANSWER

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Topic 2: Bacterial Pathogens $500 Answer

Toxins produced by some gram-negative bacteria that damage DNA are called

a. streptolysins.b. genotoxins.c. A-B toxins.d. membrane-disrupting toxins.

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Topic 3: Viral Pathogens $100 Question

Which virus irreversibly stops mitosis?

a. human immunodeficiency virus (HIV)b. herpes simplex virusc. rabies virusd. measles virus

ANSWER

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Topic 3: Viral Pathogens $100 Answer

Which virus irreversibly stops mitosis?

a. human immunodeficiency virus (HIV)b. herpes simplex virusc. rabies virusd. measles virus

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Topic 3: Viral Pathogens $200 Question

Substances produced by virus-infected cells that protect neighboring uninfected cells from infection are called

a. interferons.b. inclusion bodies.c. immunoglobulins.d. leukocidins.

ANSWER

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Topic 3: Viral Pathogens $200 Answer

Substances produced by virus-infected cells that protect neighboring uninfected cells from infection are called

a. interferons.b. inclusion bodies.c. immunoglobulins.d. leukocidins.

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Topic 3: Viral Pathogens $300 Question

Which of the following refers to the visible effects of a viral infection?

a. lysogenic conversionb. lysogenic effectsc. cytopathic effectsd. cytopathic conversion

ANSWER

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Topic 3: Viral Pathogens $300 Answer

Which of the following refers to the visible effects of a viral infection?

a. lysogenic conversionb. lysogenic effectsc. cytopathic effectsd. cytopathic conversion

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Topic 3: Viral Pathogens $400 Question

What are the granules found in the cytoplasm or nucleus of some virus-infected cells?

a. syncytiab. endotoxinsc. lysosomesd. inclusion bodies

ANSWER

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Topic 3: Viral Pathogens $400 Answer

What are the granules found in the cytoplasm or nucleus of some virus-infected cells?

a. syncytiab. endotoxinsc. lysosomesd. inclusion bodies

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Topic 3: Viral Pathogens $500 Question

Viruses that transform cells by causing loss of contact inhibition result in

a. the formation of a syncytium.b. chromosomal breakage.c. unregulated cell growth.d. antigenic changes on the host cell.

ANSWER

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Topic 3: Viral Pathogens $500 Answer

Viruses that transform cells by causing loss of contact inhibition result in

a. the formation of a syncytium.b. chromosomal breakage.c. unregulated cell growth.d. antigenic changes on the host cell.

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Topic 4: Eukaryotic Pathogens $100 Question

Which of the following is NOT a way fungi cause disease?

a. by using antigenic variationb. by producing toxinsc. by secreting proteased. by provoking an allergic response

ANSWER

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Topic 4: Eukaryotic Pathogens $100 Answer

Which of the following is NOT a way fungi cause disease?

a. by using antigenic variationb. by producing toxinsc. by secreting proteased. by provoking an allergic response

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Topic 4: Eukaryotic Pathogens $200 Question

What type of organism produces saxitoxin?

a. helminthb. algac. fungusd. plant

ANSWER

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Topic 4: Eukaryotic Pathogens $200 Answer

What type of organism produces saxitoxin?

a. helminthb. algac. fungusd. plant

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Topic 4: Eukaryotic Pathogens $300 Question

Which of the following toxins is an alkaloid that can cause hallucinations resembling those produced by LSD?

a. aflatoxinb. ergot alkaloidc. phalloidind. amanitin

ANSWER

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Topic 4: Eukaryotic Pathogens $300 Answer

Which of the following toxins is an alkaloid that can cause hallucinations resembling those produced by LSD?

a. aflatoxinb. ergot alkaloidc. phalloidind. amanitin

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Topic 4: Eukaryotic Pathogens $400 Question

Which of the following protozoa use antigenic variation to stay one step ahead of the host's immune system?

a. Toxoplasmab. Cryptosporidiumc. Trypanosomad. Plasmodium

ANSWER

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Topic 4: Eukaryotic Pathogens $400 Answer

Which of the following protozoa use antigenic variation to stay one step ahead of the host's immune system?

a. Toxoplasmab. Cryptosporidiumc. Trypanosomad. Plasmodium

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Topic 4: Eukaryotic Pathogens $500 Question

What is the causative agent of elephantiasis?

a. Entamoeba histolyticab. Candida albicansc. Cryptococcus neoformansd. Wuchereria bancrofti

ANSWER

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Topic 4: Eukaryotic Pathogens $500 Answer

What is the causative agent of elephantiasis?

a. Entamoeba histolyticab. Candida albicansc. Cryptococcus neoformansd. Wuchereria bancrofti

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Topic 5: Portals of Exit $100 Question

Arthropods provide a portal of exit for microbes via the

a. skin.b. blood.c. respiratory tract.d. genitourinary tract.

ANSWER

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Topic 5: Portals of Exit $100 Answer

Arthropods provide a portal of exit for microbes via the

a. skin.b. blood.c. respiratory tract.d. genitourinary tract.

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Topic 5: Portals of Exit $200 Question

Sneezing is a portal of exit for the

a. gastrointestinal tract.b. respiratory tract.c. blood.d. genitourinary tract.

ANSWER

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Topic 5: Portals of Exit $200 Answer

Sneezing is a portal of exit for the

a. gastrointestinal tract.b. respiratory tract.c. blood.d. genitourinary tract.

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Topic 5: Portals of Exit $300 Question

Pathogens that are discharged from the respiratory tract can cause which of the following diseases?

a. salmonellab. whooping coughc. poliomyelitisd. tetanus

ANSWER

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Topic 5: Portals of Exit $300 Answer

Pathogens that are discharged from the respiratory tract can cause which of the following diseases?

a. salmonellab. whooping coughc. poliomyelitisd. tetanus

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Topic 5: Portals of Exit $400 Question

Infections transmitted from the skin include

a. warts.b. tularemia.c. yellow fever.d. plague.

ANSWER

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Topic 5: Portals of Exit $400 Answer

Infections transmitted from the skin include

a. warts.b. tularemia.c. yellow fever.d. plague.

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Topic 5: Portals of Exit $500 Question

Which of the following diseases can be transmitted by a biting insect?

a. shigellosisb. mumpsc. tularemiad. chickenpox

ANSWER

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Topic 5: Portals of Exit $500 Answer

Which of the following diseases can be transmitted by a biting insect?

a. shigellosisb. mumpsc. tularemiad. chickenpox

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FINAL ROUND Question

Septic shock can result from using antibiotics to treat

a. gram-negative bacterial infections.b. fungal infections.c. viral infections.d. protozoan infections.

ANSWER

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FINAL ROUND Answer

Septic shock can result from using antibiotics to treat

a. gram-negative bacterial infections.b. fungal infections.c. viral infections.d. protozoan infections.

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