Question 1

Outside a cell, viruses are

Accepted Answer

A)  running a small number of biochemical reactions. 
B)  synthesizing proteins necessary for entry into the host. 
C)  inert, and not capable of replication. 
D)  constructing a cell membrane known as an envelope. 
E)  capable of some replication. 
A)  running a small number of biochemical reactions. 
B)  synthesizing proteins necessary for entry into the host. 
C)  inert, and not capable of replication. 
D)  constructing a cell membrane known as an envelope. 
E)  capable of some replication. C

Question 2

Plants are dependent on microorganisms for

Accepted Answer

A)  providing oxygen in a usable form. 
B)  providing water. 
C)  changing atmospheric nitrogen to a usable form. 
D)  providing simple carbohydrates. 
E)  providing complex proteins. 
A)  providing oxygen in a usable form. 
B)  providing water. 
C)  changing atmospheric nitrogen to a usable form. 
D)  providing simple carbohydrates. 
E)  providing complex proteins. C

Question 3

Both viruses and viroids are

Accepted Answer

A)  capable of independent reproduction. 
B)  obligate intracellular parasites. 
C)  members of the domain Bacteria. 
D)  larger than most bacteria in size. 
E)  agents that cause disease in animals. 
A)  capable of independent reproduction. 
B)  obligate intracellular parasites. 
C)  members of the domain Bacteria. 
D)  larger than most bacteria in size. 
E)  agents that cause disease in animals. B

Question 4

The human body only contains bacteria during illness.

Accepted Answer

A) True 
 B)False

Question 5

Viruses, viroids, and prions are obligate intracellular agents.

Accepted Answer

A) True 
 B)False

Question 6

Scientists recently cloned Louis Pasteur and put him back to work in a modern lab. He promptly developed a topical gel (used externally) that breaks down proteins. Since he hasn't been around for some time, he's unsure what the best application for his invention might be. Help him out. What pathogenic agent would this gel be most effective and safe at eliminating?

Accepted Answer

A)  Viroids on the surface of agricultural plant tissues. 
B)  Prions inside the central nervous system of cows. 
C)  Viruses on the surface of the skin. 
D)  Bacteria in the intestines of human beings. 
E)  The fungus that causes infections under people's toenails. 
A)  Viroids on the surface of agricultural plant tissues. 
B)  Prions inside the central nervous system of cows. 
C)  Viruses on the surface of the skin. 
D)  Bacteria in the intestines of human beings. 
E)  The fungus that causes infections under people's toenails.

Question 7

Sandy has been taking an antibiotic for a urinary tract infection (UTI). Although the signs and symptoms of Sandy's UTI resolved after a few days of taking the medication, she complains to you that she has been having watery diarrhea for the last two days, and she wonders whether the antibiotic is affecting her digestive tract. You take the opportunity to give her information about her normal microbiota.
-You explain to Sandy that her body carries an enormous population of microorganisms, collectively called the normal microbiota. You tell her that this population has a vital role in maintaining her health. Select the False statement regarding the role of the normal microbiota.

Accepted Answer

A)  Normal microbiota prevent disease by competing with pathogenic microbes. 
B)  Normal microbiota help to degrade foods that the body otherwise could not digest. 
C)  Normal microbiota synthesize vitamins that the body cannot produce. 
D)  Normal microbiota produce insulin for controlling blood sugar levels. 
E)  Normal microbiota likely affects the tendency to lose or gain weight. 
A)  Normal microbiota prevent disease by competing with pathogenic microbes. 
B)  Normal microbiota help to degrade foods that the body otherwise could not digest. 
C)  Normal microbiota synthesize vitamins that the body cannot produce. 
D)  Normal microbiota produce insulin for controlling blood sugar levels. 
E)  Normal microbiota likely affects the tendency to lose or gain weight.

Question 8

Which is/are the correctly written name?

Accepted Answer

A)  Staphylococcus aureus 
B)  Staphylococcus a. 
C)  St. aureus 
D)  staph 
E)  Staphylococcus Aureus 
A)  Staphylococcus aureus 
B)  Staphylococcus a. 
C)  St. aureus 
D)  staph 
E)  Staphylococcus Aureus

Question 9

A scientist discovers a new species near coral reefs in Australia. He finds that this single-celled species is photosynthetic (using sunlight for energy), has a rigid cell wall structure with no peptidoglycan, uses a flagellum for motion, and contains a variety of internal structures that are membrane-bound. Given this information, this new species is most likely a(n) ________ cell in the ________ domain.

Accepted Answer

A)  bacterial; Eukarya 
B)  fungal; Prokarya 
C)  viral; Archaea 
D)  algal; Eukarya 
E)  protozoan; Bacteria 
A)  bacterial; Eukarya 
B)  fungal; Prokarya 
C)  viral; Archaea 
D)  algal; Eukarya 
E)  protozoan; Bacteria

Question 10

Bacteria have been used to help produce or modify all of the following food products EXCEPT

Accepted Answer

A)  cheeses. 
B)  beer and wine. 
C)  pickled products. 
D)  bread. 
E)  peanuts. 
A)  cheeses. 
B)  beer and wine. 
C)  pickled products. 
D)  bread. 
E)  peanuts.

Question 11

Bacteria are present on the body

Accepted Answer

A)  only during disease-causing infections. 
B)  at all times. 
C)  only in certain areas. 
D)  only after intense exercise. 
E)  only after using public transport. 
A)  only during disease-causing infections. 
B)  at all times. 
C)  only in certain areas. 
D)  only after intense exercise. 
E)  only after using public transport.

Question 12

Janus is a keen baseball player at the high school where you are employed as a nurse. He comes to your office and shows you an injury to his knee which he got by sliding into home base, scoring a game-winning run. His knee has a red, raw patch where the skin has been scraped off, and the area around the wound is swollen. Janus tells you that he washed his knee with soap and water to remove any germs and then put a bandage on it. 
-Janus' knee infection should be considered an emerging  infectious disease, and you should report it to the Centers of disease Control (CDC).

Accepted Answer

A) True 
 B)False

Question 13

Which group(s) below contain single-celled and multicellular organisms?

Accepted Answer

A)  Algae AND bacteria 
B)  Fungi AND archaea 
C)  Protozoa AND bacteria 
D)  Algae AND fungi 
E)  Fungi AND protozoa 
A)  Algae AND bacteria 
B)  Fungi AND archaea 
C)  Protozoa AND bacteria 
D)  Algae AND fungi 
E)  Fungi AND protozoa

Question 14

Janus is a keen baseball player at the high school where you are employed as a nurse. He comes to your office and shows you an injury to his knee which he got by sliding into home base, scoring a game-winning run. His knee has a red, raw patch where the skin has been scraped off, and the area around the wound is swollen. Janus tells you that he washed his knee with soap and water to remove any germs and then put a bandage on it. 
-You explain to Janus that he may have an infection in his wound, possibly caused by the organism Staphylococcus epidermidis. You tell him that the genus name of the organism indicates that

Accepted Answer

A)  the cells are found on the skin. 
B)  the cells are round and grow in clusters. 
C)  the organism is a pathogen. 
D)  the organism is normal microbiota. 
E)  the cells have a golden color. 
A)  the cells are found on the skin. 
B)  the cells are round and grow in clusters. 
C)  the organism is a pathogen. 
D)  the organism is normal microbiota. 
E)  the cells have a golden color.

Question 15

The scientist usually considered the first to see microorganisms, which he called "animalcules," was ________.

Accepted Answer

A)  Redi 
B)  van Leeuwenhoek 
C)  Pasteur 
D)  Tyndall 
A)  Redi 
B)  van Leeuwenhoek 
C)  Pasteur 
D)  Tyndall

Question 16

An organism is categorized in a domain according to its cell size.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following statements about newly emerging or reemerging diseases is False?

Accepted Answer

A)  They may be caused by changing lifestyles. 
B)  Examples include Lyme disease and toxic shock syndrome. 
C)  They may result from a breakdown in sanitation and social order. 
D)  They are all caused by drug-resistant pathogens. 
E)  They may result when microbes evolve and develop new characteristics. 
A)  They may be caused by changing lifestyles. 
B)  Examples include Lyme disease and toxic shock syndrome. 
C)  They may result from a breakdown in sanitation and social order. 
D)  They are all caused by drug-resistant pathogens. 
E)  They may result when microbes evolve and develop new characteristics.

Question 18

Bacteria are useful to study because

Accepted Answer

A)  they produce protein in a simpler manner than more complex organisms. 
B)  they have the same fundamental metabolic and genetic properties as higher organisms. 
C)  they produce energy in a simpler manner than more complex organisms. 
D)  they are resistant to all known antibiotics. 
E)  they produce peptidoglycan in a simpler manner than more complex organisms. 
A)  they produce protein in a simpler manner than more complex organisms. 
B)  they have the same fundamental metabolic and genetic properties as higher organisms. 
C)  they produce energy in a simpler manner than more complex organisms. 
D)  they are resistant to all known antibiotics. 
E)  they produce peptidoglycan in a simpler manner than more complex organisms.

Question 19

Which of the statements regarding smallpox is True?

Accepted Answer

A)  Smallpox has been eliminated as a naturally occurring infection in human beings. 
B)  Smallpox still occasionally occurs in developing countries. 
C)  Smallpox outbreaks sometimes occur in chimpanzee populations. 
D)  Smallpox has been eliminated by effective vaccination. 
E)  Smallpox has been eliminated as a naturally occurring infection in human beings, AND has been eliminated by effective vaccination. 
A)  Smallpox has been eliminated as a naturally occurring infection in human beings. 
B)  Smallpox still occasionally occurs in developing countries. 
C)  Smallpox outbreaks sometimes occur in chimpanzee populations. 
D)  Smallpox has been eliminated by effective vaccination. 
E)  Smallpox has been eliminated as a naturally occurring infection in human beings, AND has been eliminated by effective vaccination.

Question 20

The cell types that lack a membrane-bound nucleus and have rigid cell walls of peptidoglycan are

Accepted Answer

A)  eukaryotes. 
B)  fungi. 
C)  bacteria. 
D)  archaea. 
E)  protozoa. 
A)  eukaryotes. 
B)  fungi. 
C)  bacteria. 
D)  archaea. 
E)  protozoa.

Exam 1: Humans and the Microbial World

Outside a cell, viruses are

Plants are dependent on microorganisms for

Both viruses and viroids are

The human body only contains bacteria during illness.

Viruses, viroids, and prions are obligate intracellular agents.

Which is/are the correctly written name?

Bacteria have been used to help produce or modify all of the following food products EXCEPT

Bacteria are present on the body

Which group(s) below contain single-celled and multicellular organisms?

The scientist usually considered the first to see microorganisms, which he called "animalcules," was ________.

An organism is categorized in a domain according to its cell size.

Which of the following statements about newly emerging or reemerging diseases is False?

Bacteria are useful to study because

Which of the statements regarding smallpox is True?

The cell types that lack a membrane-bound nucleus and have rigid cell walls of peptidoglycan are

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

The Eukaryotic Members of the Microbial World

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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