Question 1

Tapeworms

Accepted Answer

A) have a complicated digestive system. 
B) do not have a digestive system. 
C) may be transmitted by eating undercooked meat. 
D) have a larval stage known as a cercaria. 
E) do not have a digestive system AND may be transmitted by eating undercooked meat. 
A) have a complicated digestive system. 
B) do not have a digestive system. 
C) may be transmitted by eating undercooked meat. 
D) have a larval stage known as a cercaria. 
E) do not have a digestive system AND may be transmitted by eating undercooked meat. E

Question 2

The group of Fungi in which sexual reproduction has not been observed is

Accepted Answer

A) Ascomycetes. 
B) Deuteromycetes. 
C) Zygomycetes. 
D) Basidiomycetes. 
A) Ascomycetes. 
B) Deuteromycetes. 
C) Zygomycetes. 
D) Basidiomycetes. B

Question 3

Fungi are classified according to their

Accepted Answer

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

Question 4

A molecular biologist working for a government-run fishery in Vietnam is interested in controlling Pfisteria in fish farms. He needs to come up with a treatment that kills Pfisteria without harming the fish and other protists and beneficial algae that serve as food for the young fish. What strategy should the biologist consider for developing a selective treatment?

Accepted Answer

A) The cell wall of this dinoflagellate algae would have cellulose and pectin, so developing a drug treatment that could be sprayed into the water would kill it without harming the fish or the other algae that they feed on. 
B) Since this algae has a motile flagellated form that hurts fish, developing a drug that paralyzes the flagellar structure would prevent it from harming the fish (but would leave the other non-flagellated protozoa and algae they feed on alone). 
C) Since the problem lies in the toxins that this algae releases, heating up the water the fish are in to 65-75 degrees Celsius would inactivate the toxin proteins by denaturing them, keeping the fish safe. 
D) The cell wall of this dinoflagellate algae has silicon dioxide within it-so limiting the amount of this compound in the fish farm environment would prevent the algae from forming a proper cell wall, leading to their death. 
A) The cell wall of this dinoflagellate algae would have cellulose and pectin, so developing a drug treatment that could be sprayed into the water would kill it without harming the fish or the other algae that they feed on. 
B) Since this algae has a motile flagellated form that hurts fish, developing a drug that paralyzes the flagellar structure would prevent it from harming the fish (but would leave the other non-flagellated protozoa and algae they feed on alone). 
C) Since the problem lies in the toxins that this algae releases, heating up the water the fish are in to 65-75 degrees Celsius would inactivate the toxin proteins by denaturing them, keeping the fish safe. 
D) The cell wall of this dinoflagellate algae has silicon dioxide within it-so limiting the amount of this compound in the fish farm environment would prevent the algae from forming a proper cell wall, leading to their death.

Question 5

Coccidioidomycosis is

Accepted Answer

A) a fungal disease. 
B) a protozoal disease. 
C) caused by Coccidioides sp. 
D) caused by Candida sp. 
E) a fungal disease AND caused by Coccidioides sp. 
A) a fungal disease. 
B) a protozoal disease. 
C) caused by Coccidioides sp. 
D) caused by Candida sp. 
E) a fungal disease AND caused by Coccidioides sp.

Question 6

Fungi capable of dimorphism grow either as

Accepted Answer

A) rhizoids or hyphae. 
B) yeast-like or mycelium. 
C) germ tubes or buds. 
D) spores or mushrooms. 
A) rhizoids or hyphae. 
B) yeast-like or mycelium. 
C) germ tubes or buds. 
D) spores or mushrooms.

Question 7

Dimorphic fungi

Accepted Answer

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

Question 8

Deuteromycetes has been further classified using

Accepted Answer

A) DNA probes. 
B) rRNA analysis. 
C) Southern blotting. 
D) replica plating. 
A) DNA probes. 
B) rRNA analysis. 
C) Southern blotting. 
D) replica plating.

Question 9

Schizogony

Accepted Answer

A) means multiple fissions. 
B) is performed by bacteria. 
C) is performed by protozoa. 
D) is a form of reproduction. 
E) means multiple fissions AND is performed by protozoa. 
A) means multiple fissions. 
B) is performed by bacteria. 
C) is performed by protozoa. 
D) is a form of reproduction. 
E) means multiple fissions AND is performed by protozoa.

Question 10

Single-celled eukaryotic organisms that lack chlorophyll are called

Accepted Answer

A) Algae. 
B) Protozoa. 
C) Chlorophyta. 
D) Salmonella. 
A) Algae. 
B) Protozoa. 
C) Chlorophyta. 
D) Salmonella.

Question 11

The ability to exist as either a trophozoite or a cyst is characteristic of many

Accepted Answer

A) fungi. 
B) viruses. 
C) protozoa. 
D) bacteria. 
A) fungi. 
B) viruses. 
C) protozoa. 
D) bacteria.

Question 12

Aflatoxins

Accepted Answer

A) are produced by Aspergillus. 
B) are possible carcinogens. 
C) may be found in peanuts. 
D) are toxins. 
E) All of the choices are correct. 
A) are produced by Aspergillus. 
B) are possible carcinogens. 
C) may be found in peanuts. 
D) are toxins. 
E) All of the choices are correct.

Question 13

Which are not arthropods?

Accepted Answer

A) mosquitoes 
B) fleas 
C) lice 
D) ticks 
E) flukes 
A) mosquitoes 
B) fleas 
C) lice 
D) ticks 
E) flukes

Question 14

Algae have a vascular system very similar to that found in plants.

Accepted Answer

A) True 
 B)False

Question 15

Lichens may be an association of

Accepted Answer

A) several different fungi. 
B) protozoa and bacteria. 
C) algae and fungus. 
D) virus and algae. 
A) several different fungi. 
B) protozoa and bacteria. 
C) algae and fungus. 
D) virus and algae.

Question 16

Protozoans are eukaryotes and as such will always possess a nucleus, mitochondria, and chloroplasts.

Accepted Answer

A) True 
 B)False

Question 17

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

Accepted Answer

A) Multicellular organisms always have their own immune systems to contend with-so any treatment we develop needs to overcome this built-in protection mechanism in such organisms. 
B) Since bacteria are so much simpler (being single-celled), they are inherently easier to kill off than multi-cellular eukaryotic microbes. 
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.There's too much overlap when both organisms are eukaryotic. 
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. 
A) Multicellular organisms always have their own immune systems to contend with-so any treatment we develop needs to overcome this built-in protection mechanism in such organisms. 
B) Since bacteria are so much simpler (being single-celled), they are inherently easier to kill off than multi-cellular eukaryotic microbes. 
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.There's too much overlap when both organisms are eukaryotic. 
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.

Question 18

Slime molds and water molds are types of fungi.

Accepted Answer

A) True 
 B)False

Question 19

Most fungi are

Accepted Answer

A) aerobic or facultatively anaerobic. 
B) obligate anaerobes. 
C) obligate aerobes. 
D) microaerophiles. 
A) aerobic or facultatively anaerobic. 
B) obligate anaerobes. 
C) obligate aerobes. 
D) microaerophiles.

Question 20

Sarcodina move by means of

Accepted Answer

A) flagella. 
B) apicomplexans. 
C) cilia. 
D) pseudopodia. 
A) flagella. 
B) apicomplexans. 
C) cilia. 
D) pseudopodia.

Exam 12: The Eukaryotic Members of the Microbial World

Tapeworms

The group of Fungi in which sexual reproduction has not been observed is

Fungi are classified according to their

Coccidioidomycosis is

Fungi capable of dimorphism grow either as

Dimorphic fungi

Deuteromycetes has been further classified using

Schizogony

Single-celled eukaryotic organisms that lack chlorophyll are called

The ability to exist as either a trophozoite or a cyst is characteristic of many

Aflatoxins

Which are not arthropods?

Algae have a vascular system very similar to that found in plants.

Lichens may be an association of

Protozoans are eukaryotes and as such will always possess a nucleus, mitochondria, and chloroplasts.

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

Slime molds and water molds are types of fungi.

Most fungi are

Sarcodina move by means of

Humans and the Microbial World

The Molecules of Life

Microscopy and Cell Structure

Dynamics of Prokaryotic Growth

Control of Microbial Growth

Metabolism: Fueling Cell Growth

The Blueprint of Life, From Dna to Protein

Bacterial Genetics

Biotechnology and Recombinant Dna

Identification and Classification of Prokaryotes

The Diversity of Prokaryotic Organisms

Viruses, Viroids and Prions

The Innate Immune Response

The Adaptive Immune Response

Host-Microbe Interactions

Immunologic Disorders

Applications of Immune Responses

Epidemiology

Antimicrobial Medications

Respiratory System Infections

Skin Infections

Wound Infections

Digestive System Infections

Genitourinary Infections

Nervous System Infections

Blood and Lymphatic Infections

Hiv Disease and Complications of Immunodeficiency

Microbial Ecology

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

Food Microbiology

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