Question 1

Fasciola hepatica is a

Accepted Answer

A) lung fluke. 
B) blood fluke. 
C) liver fluke. 
D) roundworm. 
E) filarial worm. 
A) lung fluke. 
B) blood fluke. 
C) liver fluke. 
D) roundworm. 
E) filarial worm. C

Question 2

Transmission of the pathogen of leishmaniasis is by the

Accepted Answer

A) reduviid, "kissing," bug. 
B) tsetse fly. 
C) Anopheles mosquito. 
D) phlebotomine (sand) fly. 
E) hard-bodied tick. 
A) reduviid, "kissing," bug. 
B) tsetse fly. 
C) Anopheles mosquito. 
D) phlebotomine (sand) fly. 
E) hard-bodied tick. D

Question 3

Which is not correct about trichinellosis?

Accepted Answer

A) It can be transmitted by eating undercooked pork. 
B) It can be transmitted by eating bear meat. 
C) Numerous cases occur each year in the United States. 
D) The first symptoms mimic influenza. 
E) A cure is not available once the larvae have encysted in muscles. 
A) It can be transmitted by eating undercooked pork. 
B) It can be transmitted by eating bear meat. 
C) Numerous cases occur each year in the United States. 
D) The first symptoms mimic influenza. 
E) A cure is not available once the larvae have encysted in muscles. C

Question 4

Boiling will not kill Giardia lamblia cysts in contaminated water.

Accepted Answer

A) True 
 B)False

Question 5

An amoeba trophozoite with visible ingested RBCs that is seen in a microscopic examination of a fecal smear would likely be the pathogen _____.

Accepted Answer

Entamoeba

Question 6

The most deadly form of systemic leishmaniasis is called _____.

Accepted Answer

The answer of The most deadly form of systemic leishmaniasis...

Question 7

The vector involved in African sleeping sickness is the

Accepted Answer

A) reduviid, "kissing," bug. 
B) tsetse fly. 
C) Anopheles mosquito. 
D) phlebotomine (sand) fly. 
E) hard-bodied tick. 
A) reduviid, "kissing," bug. 
B) tsetse fly. 
C) Anopheles mosquito. 
D) phlebotomine (sand) fly. 
E) hard-bodied tick.

Question 8

Human asymptomatic carriers are common in

Accepted Answer

A) balantidiasis. 
B) amebiasis and trichomoniasis. 
C) elephantiasis. 
D) trypanosomiasis and leishmaniasis. 
E) cryptosporidiosis and malaria. 
A) balantidiasis. 
B) amebiasis and trichomoniasis. 
C) elephantiasis. 
D) trypanosomiasis and leishmaniasis. 
E) cryptosporidiosis and malaria.

Question 9

Which animals serve as intermediate hosts for human schistosomes?

Accepted Answer

A) mosquitoes 
B) fish 
C) reduviid bugs 
D) snails 
E) humans 
A) mosquitoes 
B) fish 
C) reduviid bugs 
D) snails 
E) humans

Question 10

Loa Loa is an intestinal roundworm transmitted by contaminated food.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following relationships is mismatched?

Accepted Answer

A) T.brucei gambiense and Gambian sleeping sickness 
B) T.brucei rhodesiense and West African sleeping sickness 
C) tsetse fly and African sleeping sickness 
D) Taenia solium and swine 
E) black flies and Onchocera volvulus 
A) T.brucei gambiense and Gambian sleeping sickness 
B) T.brucei rhodesiense and West African sleeping sickness 
C) tsetse fly and African sleeping sickness 
D) Taenia solium and swine 
E) black flies and Onchocera volvulus

Question 12

The larval forms of certain Taenia species, which typically infest muscles of mammalian intermediate hosts are also called

Accepted Answer

A) proglottids. 
B) merozoites. 
C) cysticerci. 
D) amastigotes. 
E) eggs. 
A) proglottids. 
B) merozoites. 
C) cysticerci. 
D) amastigotes. 
E) eggs.

Question 13

Parasitic helminths have the following characteristics, except

Accepted Answer

A) they are multicellular animals. 
B) they have a definitive host where the adult form lives. 
C) they have developmental forms that include cysts. 
D) they include roundworms. 
E) they include tapeworms. 
A) they are multicellular animals. 
B) they have a definitive host where the adult form lives. 
C) they have developmental forms that include cysts. 
D) they include roundworms. 
E) they include tapeworms.

Question 14

All of the following will kill Giardia, except

Accepted Answer

A) boiling. 
B) ozone. 
C) filtration through a 1 micron filter. 
D) chlorine in typical drinking water. 
E) All of these choices are correct. 
A) boiling. 
B) ozone. 
C) filtration through a 1 micron filter. 
D) chlorine in typical drinking water. 
E) All of these choices are correct.

Question 15

Which of the following is an apicomplexan parasite?

Accepted Answer

A) Naegleria fowleri 
B) Toxoplasma gondii 
C) Balantidium coli 
D) Giardia lamblia 
E) Entamoeba histolytica 
A) Naegleria fowleri 
B) Toxoplasma gondii 
C) Balantidium coli 
D) Giardia lamblia 
E) Entamoeba histolytica

Question 16

Many protozoan species can form a _____ that can survive for periods outside a host.

Accepted Answer

The answer of Many protozoan species can form a _____...

Question 17

African sleeping sickness is caused by

Accepted Answer

A) Trypanosoma cruzi. 
B) Trypanosoma brucei. 
C) Leishmania brasiliensis. 
D) Isospora belli. 
E) Plasmodium falciparum. 
A) Trypanosoma cruzi. 
B) Trypanosoma brucei. 
C) Leishmania brasiliensis. 
D) Isospora belli. 
E) Plasmodium falciparum.

Question 18

What specific challenge does Trypanosoma brucei present to the immune system?

Accepted Answer

A) It frequently changes its antigens, staying one step ahead of the host's antibody response. 
B) It specifically attacks B-lymphocytes preventing activation and antibody production. 
C) It specifically attacks T-lymphocytes preventing their activation and crippling the cell-mediated immune response. 
D) Its antigens are not recognized by B and T-lymphocytes so these host defense cells don't respond to the infection. 
A) It frequently changes its antigens, staying one step ahead of the host's antibody response. 
B) It specifically attacks B-lymphocytes preventing activation and antibody production. 
C) It specifically attacks T-lymphocytes preventing their activation and crippling the cell-mediated immune response. 
D) Its antigens are not recognized by B and T-lymphocytes so these host defense cells don't respond to the infection.

Question 19

Chagas'disease is treated with chloroquine.

Accepted Answer

A) True 
 B)False

Question 20

Hookworms and threadworms usually enter the body by penetrating into the skin.

Accepted Answer

A) True 
 B)False

Exam 23: The Parasites of Medical Importance

Fasciola hepatica is a

Transmission of the pathogen of leishmaniasis is by the

Which is not correct about trichinellosis?

Boiling will not kill Giardia lamblia cysts in contaminated water.

An amoeba trophozoite with visible ingested RBCs that is seen in a microscopic examination of a fecal smear would likely be the pathogen _____.

The most deadly form of systemic leishmaniasis is called _____.

The vector involved in African sleeping sickness is the

Human asymptomatic carriers are common in

Which animals serve as intermediate hosts for human schistosomes?

Loa Loa is an intestinal roundworm transmitted by contaminated food.

Which of the following relationships is mismatched?

The larval forms of certain Taenia species, which typically infest muscles of mammalian intermediate hosts are also called

Parasitic helminths have the following characteristics, except

All of the following will kill Giardia, except

Which of the following is an apicomplexan parasite?

Many protozoan species can form a _____ that can survive for periods outside a host.

African sleeping sickness is caused by

What specific challenge does Trypanosoma brucei present to the immune system?

Chagas'disease is treated with chloroquine.

Hookworms and threadworms usually enter the body by penetrating into the skin.

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods of Studying Microorganisms

A Survey of Prokaryotic Cells and Microorganisms

A Survey of Eukaryotic Cells and Microorganisms

An Introduction to Viruses

Microbial Nutrition, Ecology, and Growth

An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

Microbial Genetics

Genetic Engineering: a Revolution in Molecular Biology

Physical and Chemical Agents for Microbial Control

Drugs, Microbes, Host--The Elements of Chemotherapy

Microbe-Human Interactions: Infection and Disease

An Introduction to Host Defenses and Innate Immunities

Adaptive, Specific Immunity and Immunization

Disorders in Immunity

Procedures for Identifying Pathogens and Diagnosing Infections

The Gram-Positive and Gram-Negative Cocci of Medical Importance

The Gram-Positive Bacilli of Medical Importance

The Gram-Negative Bacilli of Medical Importance

Miscellaneous Bacterial Agents of Disease

The Fungi of Medical Importance

Introduction to Viruses That Infect Humans: the Dna Viruses

The Rna Viruses That Infect Humans

Environmental Microbiology

Applied and Industrial Microbiology

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