Question 1

Below are paired items referring to the heartworm Dirofilaria immitis.Which of the pairs is mismatched?

Accepted Answer

A) dog - definitive host 
B) dog - sexual reproduction 
C) mosquito - vector 
D) mosquito - definitive host 
E) None of the pairs is mismatched. 
A) dog - definitive host 
B) dog - sexual reproduction 
C) mosquito - vector 
D) mosquito - definitive host 
E) None of the pairs is mismatched.

Question 2

The encysted larva of the beef tapeworm is called a

Accepted Answer

A) redia. 
B) cercaria. 
C) cysticercus. 
D) metacercaria. 
E) proglottid. 
A) redia. 
B) cercaria. 
C) cysticercus. 
D) metacercaria. 
E) proglottid.

Question 3

Infecting more than 2 billion people worldwide,________ are the most common causes of chronic infectious diseases.

Accepted Answer

A) intestinal tapeworms 
B) intestinal roundworms 
C) fungi 
D) algae 
E) protozoa 
A) intestinal tapeworms 
B) intestinal roundworms 
C) fungi 
D) algae 
E) protozoa

Question 4

The life cycle of the fish tapeworm is similar to that of the beef tapeworm.Which of the following is the most effective preventive measure to avoid human infection?

Accepted Answer

A) salting fish before eating 
B) refrigerating stored fish 
C) cooking fish before eating 
D) wearing gloves while handling fish 
E) not swimming in fish-infested waters 
A) salting fish before eating 
B) refrigerating stored fish 
C) cooking fish before eating 
D) wearing gloves while handling fish 
E) not swimming in fish-infested waters

Question 5

Which of the following statements about helminths is FALSE?

Accepted Answer

A) They are heterotrophic. 
B) They are multicellular animals. 
C) They have eukaryotic cells. 
D) All are parasites. 
E) Some have male and female reproductive organs in one animal. 
A) They are heterotrophic. 
B) They are multicellular animals. 
C) They have eukaryotic cells. 
D) All are parasites. 
E) Some have male and female reproductive organs in one animal.

Question 6

Both the cellular slime molds and the plasmodial slime molds are members of the phylum Amoebozoa.

Accepted Answer

A) True 
 B)False

Question 7

All of the following are characteristic of the Platyhelminthes EXCEPT that they

Accepted Answer

A) are hermaphroditic. 
B) are dorsoventrally flattened. 
C) have highly developed digestive and nervous systems. 
D) can be divided into flukes and tapeworms. 
E) are multicellular animals. 
A) are hermaphroditic. 
B) are dorsoventrally flattened. 
C) have highly developed digestive and nervous systems. 
D) can be divided into flukes and tapeworms. 
E) are multicellular animals.

Question 8

If a larva of Echinococcus granulosus is found in humans,humans are the

Accepted Answer

A) definitive host. 
B) infected host. 
C) intermediate host. 
D) reservoir. 
E) None of the answers is correct. 
A) definitive host. 
B) infected host. 
C) intermediate host. 
D) reservoir. 
E) None of the answers is correct.

Question 9

What do tapeworms eat?

Accepted Answer

A) intestinal bacteria 
B) host tissues 
C) red blood cells 
D) intestinal contents 
E) plant matter 
A) intestinal bacteria 
B) host tissues 
C) red blood cells 
D) intestinal contents 
E) plant matter

Question 10

Some species of dinoflagellates produce neurotoxins that cause fish kills and red tides.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following groups of algae does NOT produce compounds that are toxic to humans?

Accepted Answer

A) diatoms 
B) dinoflagellates 
C) green algae 
D) red algae 
A) diatoms 
B) dinoflagellates 
C) green algae 
D) red algae

Question 12

In the malaria parasite life cycle,humans are the ________ host,while mosquitoes are the ________ host as well as the vector.

Accepted Answer

A) definitive;intermediate 
B) intermediate;intermediate 
C) temporary;final 
D) vector;intermediate 
E) intermediate;definitive 
A) definitive;intermediate 
B) intermediate;intermediate 
C) temporary;final 
D) vector;intermediate 
E) intermediate;definitive

Question 13

The head of a tapeworm intestinal parasite is known as the ________.

Accepted Answer

A) proglottid 
B) spicule 
C) scolex 
D) cysticerci 
E) hydatid cyst 
A) proglottid 
B) spicule 
C) scolex 
D) cysticerci 
E) hydatid cyst

Question 14

Table 12.1
 $$\begin{array} { l l } 
\text { 1-Arthroconidium } & \text { 5-Chlamydoconidium } \
\text { 2-Ascospore } & \text { 6-Conidiospore } \
\text { 3-Basidiospore } & \text { 7-Sporangiospore } \
\text { 4-Blastoconidium } & \text { 8-Zygospore }
\end{array}$$
-In Table 12.1,which of these spores are characteristic of Rhizopus?

Accepted Answer

A) 1 and 2 
B) 6 and 7 
C) 2 and 8 
D) 1 and 4 
E) 7 and 8 
A) 1 and 2 
B) 6 and 7 
C) 2 and 8 
D) 1 and 4 
E) 7 and 8

Question 15

Yeast infections are caused by

Accepted Answer

A) Aspergillus. 
B) Candida albicans. 
C) Histoplasma. 
D) Penicillium. 
E) Saccharomyces cerevisiae. 
A) Aspergillus. 
B) Candida albicans. 
C) Histoplasma. 
D) Penicillium. 
E) Saccharomyces cerevisiae.

Question 16

Assume you have isolated a multicellular heterotrophic organism that produces coenocytic hyphae,motile zoospores,and cellulose cell walls.It is most likely a(n)

Accepted Answer

A) ascomycete fungus. 
B) green alga. 
C) oomycote alga. 
D) tapeworm. 
E) zygomycete fungus. 
A) ascomycete fungus. 
B) green alga. 
C) oomycote alga. 
D) tapeworm. 
E) zygomycete fungus.

Question 17

Which of the following statements about the oomycote algae is FALSE?

Accepted Answer

A) They form hyphae. 
B) They produce zoospores in a sporangium. 
C) They cause plant diseases. 
D) They have chlorophyll. 
E) They reproduce sexually. 
A) They form hyphae. 
B) They produce zoospores in a sporangium. 
C) They cause plant diseases. 
D) They have chlorophyll. 
E) They reproduce sexually.

Question 18

Arthropod vectors are blood-sucking animals such as ticks,lice,and fleas that transmit microbial pathogens.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following pairs is mismatched?

Accepted Answer

A) dinoflagellates - paralytic shellfish poisoning 
B) brown algae - algin 
C) red algae - agar 
D) diatoms - petroleum 
E) green algae - prokaryotic 
A) dinoflagellates - paralytic shellfish poisoning 
B) brown algae - algin 
C) red algae - agar 
D) diatoms - petroleum 
E) green algae - prokaryotic

Question 20

Which of the following organisms is photoautotrophic protozoan?

Accepted Answer

A) oomycote 
B) cellular slime mold 
C) Euglena 
D) Phytophthora 
E) plasmodial slime mold 
A) oomycote 
B) cellular slime mold 
C) Euglena 
D) Phytophthora 
E) plasmodial slime mold

Exam 12: The Eukaryotes: Fungi, algae, protozoa, and Helminths

Below are paired items referring to the heartworm Dirofilaria immitis.Which of the pairs is mismatched?

The encysted larva of the beef tapeworm is called a

Infecting more than 2 billion people worldwide,________ are the most common causes of chronic infectious diseases.

The life cycle of the fish tapeworm is similar to that of the beef tapeworm.Which of the following is the most effective preventive measure to avoid human infection?

Which of the following statements about helminths is FALSE?

Both the cellular slime molds and the plasmodial slime molds are members of the phylum Amoebozoa.

All of the following are characteristic of the Platyhelminthes EXCEPT that they

If a larva of Echinococcus granulosus is found in humans,humans are the

What do tapeworms eat?

Some species of dinoflagellates produce neurotoxins that cause fish kills and red tides.

Which of the following groups of algae does NOT produce compounds that are toxic to humans?

In the malaria parasite life cycle,humans are the ________ host,while mosquitoes are the ________ host as well as the vector.

The head of a tapeworm intestinal parasite is known as the ________.

Table 12.1 1-Arthroconidium 5-Chlamydoconidium 2-Ascospore 6-Conidiospore 3-Basidiospore 7-Sporangiospore 4-Blastoconidium 8-Zygospore -In Table 12.1,which of these spores are characteristic of Rhizopus?

Yeast infections are caused by

Assume you have isolated a multicellular heterotrophic organism that produces coenocytic hyphae,motile zoospores,and cellulose cell walls.It is most likely a(n)

Which of the following statements about the oomycote algae is FALSE?

Arthropod vectors are blood-sucking animals such as ticks,lice,and fleas that transmit microbial pathogens.

Which of the following pairs is mismatched?

Which of the following organisms is photoautotrophic protozoan?

The Microbial World and You

Chemical Principles

Observing Microorganisms Through a Microscope

Functional Anatomy of Prokaryotic and Eukaryotic

Microbial Metabolism

Microbial Growth

The Control of Microbial Growth

Microbial Genetics

Biotechnology and Dna Technology

Classification of Microorganisms

The Prokaryotes: Domains Bacteria and Archaea

Viruses,viroids,and Prions

Principles of Disease and Epidemiology

Microbial Mechanisms of Pathogenicity

Innate Immunity: Nonspecific Defenses of the Host

Adaptive Immunity: Specific Defenses of the Host

Practical Applications of Immunology

Disorders Associated With the Immune System

Antimicrobial Drugs

Microbial Diseases of the Skin and Eyes

Microbial Diseases of the Nervous System

Microbial Diseases of the Cardiovascular and Lymphatic Systems

Microbial Diseases of the Respiratory System

Microbial Diseases of the Digestive System

Microbial Diseases of the Urinary and Reproductive Systems

Environmental Microbiology

Applied and Industrial Microbiology

Filters

In the malaria parasite life cycle,humans are the host,while mosquitoes are the host as well as the vector.