Question 1

One of the greatest causes of human deaths through time has been due to

Accepted Answer

A)  Giardia spp. 
B)  Histoplasma spp. 
C)  Plasmodium spp. 
D)  Trypanosoma spp. 
E)  Escherichia spp. 
A)  Giardia spp. 
B)  Histoplasma spp. 
C)  Plasmodium spp. 
D)  Trypanosoma spp. 
E)  Escherichia spp. C

Question 2

Single-celled eukaryotic organisms that lack chlorophyll include

Accepted Answer

A)  protozoa AND yeasts. 
B)  algae AND yeasts. 
C)  protozoa AND cyanobacteria. 
D)  yeasts AND cyanobacteria. 
E)  algae AND archaea. 
A)  protozoa AND yeasts. 
B)  algae AND yeasts. 
C)  protozoa AND cyanobacteria. 
D)  yeasts AND cyanobacteria. 
E)  algae AND archaea. A

Question 3

One of the organisms that may cause red tide is

Accepted Answer

A)  green algae. 
B)  dinoflagellates. 
C)  brown algae. 
D)  euglenids. 
E)  diatoms. 
A)  green algae. 
B)  dinoflagellates. 
C)  brown algae. 
D)  euglenids. 
E)  diatoms. B

Question 4

Yersinia pestis can be transmitted in more than one way. Most commonly, a person is bitten by an infected flea from which he or she may contract bubonic plague, characterized by large and tender lymph nodes (called buboes). If a person inhales respiratory droplets from an infected patient or animal, he or she may develop pneumonic plague with signs and symptoms of pneumonia (rare). When the causative organism spreads via the bloodstream, the person may develop septicemic plague in which there is bleeding in the skin and organs (rare). Which of the following would you tell your friend to put his mind at ease about going to Yosemite?

Accepted Answer

A)  Most people who get plague actually get the pneumonic form of the disease, transmitted through inhaled droplets. If you wear a face mask while you hike, you will be perfectly safe and will not contract the disease. 
B)  The people who contracted plague while in Yosemite were camping and were likely exposed to fleas from ground squirrels in the camp grounds. As you will be staying in a hotel, your risk of getting bitten by squirrel fleas is very low. 
C)  Plague is really not a very serious disease. People in the Middle Ages died from it because their immune systems were very weak in those days because of bad air pollution. 
D)  Plague is a serious disease but your immune system can easily get rid of it because the causative agent has no way to avoid your immune defenses. As such, it doesn't matter if you contract plague because you will easily recover. 
E)  Plague is a seasonal disease because the causative organism only grows at 28ᵒC. It has only been reported to occur during May or October, so if you hike in July, there will be no risk. 
A)  Most people who get plague actually get the pneumonic form of the disease, transmitted through inhaled droplets. If you wear a face mask while you hike, you will be perfectly safe and will not contract the disease. 
B)  The people who contracted plague while in Yosemite were camping and were likely exposed to fleas from ground squirrels in the camp grounds. As you will be staying in a hotel, your risk of getting bitten by squirrel fleas is very low. 
C)  Plague is really not a very serious disease. People in the Middle Ages died from it because their immune systems were very weak in those days because of bad air pollution. 
D)  Plague is a serious disease but your immune system can easily get rid of it because the causative agent has no way to avoid your immune defenses. As such, it doesn't matter if you contract plague because you will easily recover. 
E)  Plague is a seasonal disease because the causative organism only grows at 28ᵒC. It has only been reported to occur during May or October, so if you hike in July, there will be no risk.

Question 5

Slime molds and water molds are types of fungi.

Accepted Answer

A) True 
 B)False

Question 6

Algae

Accepted Answer

A)  often grow in areas where other forms of life may have difficulty. 
B)  are strictly macroscopic organisms. 
C)  have a vascular system similar to that of plants. 
D)  are only found in the soil. 
E)  are always saprophytic or parasitic. 
A)  often grow in areas where other forms of life may have difficulty. 
B)  are strictly macroscopic organisms. 
C)  have a vascular system similar to that of plants. 
D)  are only found in the soil. 
E)  are always saprophytic or parasitic.

Question 7

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 8

Which of the following are characteristics of fungi?

Accepted Answer

A)  They have a peptidoglycan cell wall AND they may be photosynthetic. 
B)  Their cell wall contains chitin AND they use nutrients from dead or decaying organic matter. 
C)  Their cell wall contains cellulose AND they use nutrients from dead or decaying organic matter. 
D)  Their cytoplasmic membrane contains ergesterol AND they are always multicellular. 
E)  They have a nuclear membrane AND their cell wall contains cellulose. 
A)  They have a peptidoglycan cell wall AND they may be photosynthetic. 
B)  Their cell wall contains chitin AND they use nutrients from dead or decaying organic matter. 
C)  Their cell wall contains cellulose AND they use nutrients from dead or decaying organic matter. 
D)  Their cytoplasmic membrane contains ergesterol AND they are always multicellular. 
E)  They have a nuclear membrane AND their cell wall contains cellulose.

Question 9

Fungal diseases are generally referred to as

Accepted Answer

A)  mycoses. 
B)  infections. 
C)  systemics. 
D)  infestations. 
E)  funguses. 
A)  mycoses. 
B)  infections. 
C)  systemics. 
D)  infestations. 
E)  funguses.

Question 10

Fungi are often capable of locomotion through the use of flagella.

Accepted Answer

A) True 
 B)False

Question 11

Free-floating, photosynthetic organisms found in marine environments are

Accepted Answer

A)  Bucella. 
B)  phytoplankton. 
C)  blue-green algae. 
D)  krill. 
E)  omega-3s 
A)  Bucella. 
B)  phytoplankton. 
C)  blue-green algae. 
D)  krill. 
E)  omega-3s

Question 12

Fungi are important in

Accepted Answer

A)  food production. 
B)  food spoilage. 
C)  production of antibiotics. 
D)  disease of plants. 
E)  All of the choices are correct. 
A)  food production. 
B)  food spoilage. 
C)  production of antibiotics. 
D)  disease of plants. 
E)  All of the choices are correct.

Question 13

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 14

You and your exercise buddy decide to go to Yosemite National Park to hike the famous El Capitan trail. You book your trip through a well known agency but before you leave for your vacation, you learn that there have been two cases of plague reported in people who recently visited a different area of the park. Your friend is anxious and tells you he thinks that plague is really dangerous and kills people everyone who gets it. He points out that this disease killed a lot of people during the Middle Ages, and says he doesn't want to do the trip after all. You decide to do some research on the plague and its causative agent before making a decision about your trip.
-Some arthropods cause disease even when they do not act as a vector. Which of the following is an example of this?

Accepted Answer

A)  Scabies is characterized by an itchy rash caused by allergic reactions to female mites that have burrowed into the outer layers of skin. 
B)  The pubic louse is commonly transmitted during sexual intercourse and can cause an unpleasant itch associated with "crabs." 
C)  Dust mites do not transmit infectious disease, but inhalation of the mites and their waste products can sometimes trigger asthma. 
D)  The larvae of some mites are called "chiggers" and may cause intense itching where they attach and feed on fluids within skin cells. 
E)  These are all examples of the situation described. 
A)  Scabies is characterized by an itchy rash caused by allergic reactions to female mites that have burrowed into the outer layers of skin. 
B)  The pubic louse is commonly transmitted during sexual intercourse and can cause an unpleasant itch associated with "crabs." 
C)  Dust mites do not transmit infectious disease, but inhalation of the mites and their waste products can sometimes trigger asthma. 
D)  The larvae of some mites are called "chiggers" and may cause intense itching where they attach and feed on fluids within skin cells. 
E)  These are all examples of the situation described.

Question 15

Fleas

Accepted Answer

A)  may transmit Yersinia pestis. 
B)  may transmit Lyme disease. 
C)  may transmit a toxin. 
D)  have only one host-humans. 
E)  have only two hosts-cats and dogs. 
A)  may transmit Yersinia pestis. 
B)  may transmit Lyme disease. 
C)  may transmit a toxin. 
D)  have only one host-humans. 
E)  have only two hosts-cats and dogs.

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

A tangle of fungal hyphae is generally known as a

Accepted Answer

A)  mycelium. 
B)  bud. 
C)  germ tube. 
D)  spore. 
E)  biofilm. 
A)  mycelium. 
B)  bud. 
C)  germ tube. 
D)  spore. 
E)  biofilm.

Question 18

Why would all protozoa be expected to require large amounts of water in their habitats?

Accepted Answer

A)  Without being in water, they would quickly dehydrate (due to their small size) and die. 
B)  They require water to help them during photosynthesis by providing an electron source. 
C)  They require water to move around in to seek food particles and would be unable to move without water. 
D)  Without being in water, they would quickly undergo plasmolysis (due to their small size) and die. 
E)  None of the statements is correct. 
A)  Without being in water, they would quickly dehydrate (due to their small size) and die. 
B)  They require water to help them during photosynthesis by providing an electron source. 
C)  They require water to move around in to seek food particles and would be unable to move without water. 
D)  Without being in water, they would quickly undergo plasmolysis (due to their small size) and die. 
E)  None of the statements is correct.

Question 19

Phthirus pubis

Accepted Answer

A)  transmit bacterial disease. 
B)  cause "crabs." 
C)  infect the blood. 
D)  are transmitted by mosquitoes. 
E)  are biological vectors. 
A)  transmit bacterial disease. 
B)  cause "crabs." 
C)  infect the blood. 
D)  are transmitted by mosquitoes. 
E)  are biological vectors.

Question 20

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.

Exam 12: The Eukaryotic Members of the Microbial World

One of the greatest causes of human deaths through time has been due to

Single-celled eukaryotic organisms that lack chlorophyll include

One of the organisms that may cause red tide is

Slime molds and water molds are types of fungi.

Algae

Coccidioidomycosis is

Which of the following are characteristics of fungi?

Fungal diseases are generally referred to as

Fungi are often capable of locomotion through the use of flagella.

Free-floating, photosynthetic organisms found in marine environments are

Fungi are important in

Fungal spores are a major cause of

Fleas

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

A tangle of fungal hyphae is generally known as a

Why would all protozoa be expected to require large amounts of water in their habitats?

Phthirus pubis

Lice and mites

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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