Question 1

Typically, arthropods serve as vectors of disease, while helminths directly cause disease.

Accepted Answer

A) True 
 B)False

Question 2

Pediculus humanus

Accepted Answer

A)  only uses humans as a host AND is carried by mosquitoes. 
B)  only uses humans as a host AND can transmit a bacterial disease. 
C)  only infects feet AND can transmit a bacterial disease. 
D)  can transmit a bacterial disease AND only infects feet. 
E)  is an obligate intracellular parasite AND only uses humans as a host. 
A)  only uses humans as a host AND is carried by mosquitoes. 
B)  only uses humans as a host AND can transmit a bacterial disease. 
C)  only infects feet AND can transmit a bacterial disease. 
D)  can transmit a bacterial disease AND only infects feet. 
E)  is an obligate intracellular parasite AND only uses humans as a host.

Question 3

Coccidioidomycosis is

Accepted Answer

A)  a fungal disease caused by Coccidioides sp. 
B)  a protozoan disease caused by Coccidioides sp. 
C)  a fungal disease caused by Candida sp. 
D)  a protozoan disease caused by Candida sp. 
E)  a viral disease caused by Coccidioides sp. 
A)  a fungal disease caused by Coccidioides sp. 
B)  a protozoan disease caused by Coccidioides sp. 
C)  a fungal disease caused by Candida sp. 
D)  a protozoan disease caused by Candida sp. 
E)  a viral disease caused by Coccidioides sp.

Question 4

Which of the following definitions is CORRECT?

Accepted Answer

A)  Saprophytes-organisms that take in nutrients from dead and decaying matter. 
B)  Mycelium-thread-like structure that characterizes the growth of most fungi and some bacterial species. 
C)  Zooplankton-microscopic free-floating photosynthetic organisms. 
D)  Kinetoplastids-a group of protozoa that penetrate host cells by means of a structure called an apical complex. 
E)  Proglottids-short, non-segmented, bilaterally symmetrical flatworms. 
A)  Saprophytes-organisms that take in nutrients from dead and decaying matter. 
B)  Mycelium-thread-like structure that characterizes the growth of most fungi and some bacterial species. 
C)  Zooplankton-microscopic free-floating photosynthetic organisms. 
D)  Kinetoplastids-a group of protozoa that penetrate host cells by means of a structure called an apical complex. 
E)  Proglottids-short, non-segmented, bilaterally symmetrical flatworms.

Question 5

Dimorphic fungi

Accepted Answer

A)  may grow as mycelia or yeast AND are mushrooms. 
B)  may grow as mycelia or yeast AND are often associated with disease in humans. 
C)  are often associated with disease in humans AND are mushrooms. 
D)  are strictly hyphae AND are often associated with disease in humans. 
E)  are strictly yeasts AND are often associated with disease in humans. 
A)  may grow as mycelia or yeast AND are mushrooms. 
B)  may grow as mycelia or yeast AND are often associated with disease in humans. 
C)  are often associated with disease in humans AND are mushrooms. 
D)  are strictly hyphae AND are often associated with disease in humans. 
E)  are strictly yeasts AND are often associated with disease in humans.

Question 6

Fungi are particularly good at infecting

Accepted Answer

A)  protozoans. 
B)  plants. 
C)  algae. 
D)  animals. 
E)  fish. 
A)  protozoans. 
B)  plants. 
C)  algae. 
D)  animals. 
E)  fish.

Question 7

Please select the FALSE statement regarding plague and its transmission.

Accepted Answer

A)  Plague is caused by a Gram-negative organism and is thus completely untreatable with antibiotics. 
B)  Yersinia pestis is a Gram-negative organism and thus possess an outer lipopolysaccharide layer. 
C)  People can contract plague when they are bitten by fleas from rodents infected with the causative organism. 
D)  Y. pestis is typically transmitted by the bites of infected fleas, an example of biological transmission. 
E)  The incidence of vector-borne diseases such as plague can be decreased by controlling the vector or the infected hosts. 
A)  Plague is caused by a Gram-negative organism and is thus completely untreatable with antibiotics. 
B)  Yersinia pestis is a Gram-negative organism and thus possess an outer lipopolysaccharide layer. 
C)  People can contract plague when they are bitten by fleas from rodents infected with the causative organism. 
D)  Y. pestis is typically transmitted by the bites of infected fleas, an example of biological transmission. 
E)  The incidence of vector-borne diseases such as plague can be decreased by controlling the vector or the infected hosts.

Question 8

In the late nineteenth century, immigration from Ireland to the United States occurred in high numbers due to an infection of potatoes by

Accepted Answer

A)  bacteria. 
B)  viruses. 
C)  fungi. 
D)  protozoa. 
E)  water molds. 
A)  bacteria. 
B)  viruses. 
C)  fungi. 
D)  protozoa. 
E)  water molds.

Question 9

Macroscopic algae possess a special structure that acts as an anchor and is commonly called

Accepted Answer

A)  a thallus. 
B)  a holdfast. 
C)  roots. 
D)  the stipe. 
E)  the bladder. 
A)  a thallus. 
B)  a holdfast. 
C)  roots. 
D)  the stipe. 
E)  the bladder.

Question 10

Why would it be more difficult to treat diseases in humans caused by members of the Eukarya than diseases caused by the Bacteria?

Accepted Answer

A)  Multicellular organisms always have their own immune systems for protection, so any treatment we develop needs to overcome this built-in protection mechanism. 
B)  Since bacteria are so much simpler (being single-celled) than multi-cellular eukaryotic microbes, they are naturally easier to kill off. 
C)  Eukaryotic microbes use many of the same enzymes and systems as humans, so we lose the ability to target certain molecules that might be present ONLY in the cell type we want to eliminate. 
D)  Eukaryotic microbes (unlike prokaryotes) often secrete compounds that breakdown and eliminate drugs used against them. This makes them much harder to effectively eliminate than bacteria. 
E)  Eukaryotic pathogens multiply much more effectively in a human host than bacterial pathogens do; they attain extremely high numbers in the host, making it very difficult to get rid of them. 
A)  Multicellular organisms always have their own immune systems for protection, so any treatment we develop needs to overcome this built-in protection mechanism. 
B)  Since bacteria are so much simpler (being single-celled) than multi-cellular eukaryotic microbes, they are naturally easier to kill off. 
C)  Eukaryotic microbes use many of the same enzymes and systems as humans, so we lose the ability to target certain molecules that might be present ONLY in the cell type we want to eliminate. 
D)  Eukaryotic microbes (unlike prokaryotes) often secrete compounds that breakdown and eliminate drugs used against them. This makes them much harder to effectively eliminate than bacteria. 
E)  Eukaryotic pathogens multiply much more effectively in a human host than bacterial pathogens do; they attain extremely high numbers in the host, making it very difficult to get rid of them.

Question 11

Protozoan classification used to be based on their means of

Accepted Answer

A)  locomotion. 
B)  growth. 
C)  reproduction. 
D)  obtaining nutrients. 
E)  causing disease. 
A)  locomotion. 
B)  growth. 
C)  reproduction. 
D)  obtaining nutrients. 
E)  causing disease.

Question 12

Which of the statements BEST describes tapeworms?

Accepted Answer

A)  They have a complicated digestive system. 
B)  They do not have a digestive system. 
C)  They may be transmitted by eating undercooked meat. 
D)  They do not have a digestive system AND they may be transmitted by eating undercooked meat. 
E)  They have a complicated digestive system AND they may be transmitted by eating undercooked meat. 
A)  They have a complicated digestive system. 
B)  They do not have a digestive system. 
C)  They may be transmitted by eating undercooked meat. 
D)  They do not have a digestive system AND they may be transmitted by eating undercooked meat. 
E)  They have a complicated digestive system AND they may be transmitted by eating undercooked meat.

Question 13

Sexual reproduction in algae involves meiosis that results in the production of

Accepted Answer

A)  spores with twice as much DNA as the parental cells. 
B)  gametes with half the amount of DNA as in the parental cells. 
C)  spores with the same amount of DNA as the parental cells. 
D)  swarming cells with the same amount of DNA as the parental cells. 
E)  gametes with the same amount of DNA as in the parental cells. 
A)  spores with twice as much DNA as the parental cells. 
B)  gametes with half the amount of DNA as in the parental cells. 
C)  spores with the same amount of DNA as the parental cells. 
D)  swarming cells with the same amount of DNA as the parental cells. 
E)  gametes with the same amount of DNA as in the parental cells.

Question 14

Fungi are important because of their ability to

Accepted Answer

A)  help many plants grow. 
B)  cause disease in plants. 
C)  make certain foods and beverages. 
D)  spoil food. 
E)  All of the answer choices are correct. 
A)  help many plants grow. 
B)  cause disease in plants. 
C)  make certain foods and beverages. 
D)  spoil food. 
E)  All of the answer choices are correct.

Question 15

Lice and mites

Accepted Answer

A)  are both arachnids. 
B)  may both be spread by personal contact. 
C)  are intestinal parasites. 
D)  cause Lyme disease. 
E)  both cause respiratory illness. 
A)  are both arachnids. 
B)  may both be spread by personal contact. 
C)  are intestinal parasites. 
D)  cause Lyme disease. 
E)  both cause respiratory illness.

Question 16

Lyme disease is transmitted by

Accepted Answer

A)  ticks. 
B)  lice. 
C)  mosquitoes. 
D)  fleas. 
E)  bacteria. 
A)  ticks. 
B)  lice. 
C)  mosquitoes. 
D)  fleas. 
E)  bacteria.

Question 17

Fungal spores are a major cause of

Accepted Answer

A)  anaerobic disease. 
B)  fermentation. 
C)  asthma. 
D)  food spoilage. 
E)  hallucinations. 
A)  anaerobic disease. 
B)  fermentation. 
C)  asthma. 
D)  food spoilage. 
E)  hallucinations.

Question 18

Fungi are classified according to their

Accepted Answer

A)  mode of locomotion. 
B)  morphology. 
C)  mode of nutrition. 
D)  method of sexual reproduction. 
E)  cap color. 
A)  mode of locomotion. 
B)  morphology. 
C)  mode of nutrition. 
D)  method of sexual reproduction. 
E)  cap color.

Question 19

Haustoria

Accepted Answer

A)  are a form of parasitic protozoan. 
B)  refers to the reproductive structure formed by slime molds. 
C)  are specialized hyphae used by parasitic fungi. 
D)  are the reproductive form of protozoans. 
E)  are a type of root used by all climbing plants. 
A)  are a form of parasitic protozoan. 
B)  refers to the reproductive structure formed by slime molds. 
C)  are specialized hyphae used by parasitic fungi. 
D)  are the reproductive form of protozoans. 
E)  are a type of root used by all climbing plants.

Question 20

All fungi have ________ in their cell walls.

Accepted Answer

A)  chitin 
B)  cellulose 
C)  pectin 
D)  peptidoglycan 
E)  ergesterol 
A)  chitin 
B)  cellulose 
C)  pectin 
D)  peptidoglycan 
E)  ergesterol

Exam 12: The Eukaryotic Members of the Microbial World

Typically, arthropods serve as vectors of disease, while helminths directly cause disease.

Pediculus humanus

Coccidioidomycosis is

Which of the following definitions is CORRECT?

Dimorphic fungi

Fungi are particularly good at infecting

Please select the FALSE statement regarding plague and its transmission.

In the late nineteenth century, immigration from Ireland to the United States occurred in high numbers due to an infection of potatoes by

Macroscopic algae possess a special structure that acts as an anchor and is commonly called

Why would it be more difficult to treat diseases in humans caused by members of the Eukarya than diseases caused by the Bacteria?

Protozoan classification used to be based on their means of

Which of the statements BEST describes tapeworms?

Sexual reproduction in algae involves meiosis that results in the production of

Fungi are important because of their ability to

Lice and mites

Lyme disease is transmitted by

Fungal spores are a major cause of

Fungi are classified according to their

Haustoria

All fungi have ________ in their cell walls.

Humans and the Microbial World

The Molecules of Life

Microscopy and Cell Structure

Dynamics of Microbial Growth

Control of Microbial Growth

Microbial Metabolism: Fueling Cell Growth

The Blueprint of Life, From Dna to Protein

Bacterial Genetics

Biotechnology

Identifying and Classifying Microorganisms

The Diversity of Bacteria and Archaea

Viruses, Viroids, and Prions

The Innate Immune Response

The Adaptive Immune Response

Host-Microbe Interactions

Immunological Disorders

Applications of Immune Responses

Epidemiology

Antimicrobial Medications

Respiratory System Infections

Skin Infections

Wound Infections

Digestive System Infections

Blood and Lymphatic Infections

Nervous System Infections

Genitourinary Tract Infections

Microbial Ecology

Environmental Microbiology: Treatment of Water, Wastes, and Polluted Habitats

Food Microbiology

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