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Chapter 01: Microbes Shape Our History
MULTIPLE CHOICE
1. Which of the following is NOT considered a benefit of microorganisms?
a. nitrogen fixation c. synthesis of vitamins
b. production of fermented foods d. causative agents of disease
ANS: D DIF: Easy REF: 1.1
OBJ: 1.1a Describe how we define a microbe, and explain why the definition is a challenge.
MSC: Remembering
2. A microbe that is 50 nm in size would most likely be
a. fungi. c. virus.
b. E. coli. d. algae.
ANS: C DIF: Moderate REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Applying
3. Based on the figure shown, the type of organism indicated with an arrow could be a
a. virus. c. macroscopic fungi.
b. bacteria. d. large ameba.
ANS: B DIF: Easy REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Applying
4. Based on the figure, the type of organism shown is a(n)
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a. virus. c. archaea.
b. bacteria. d. eukaryote.
ANS: D DIF: Moderate REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Applying
5. Which of the following demonstrates correct scientific notation of a bacterial organism?
a. Staphylococcus Epidermidis c. Staphylococcus epidermidis
b. Staphylococcus epidermidis d. Staphylococcus Epidermidis
ANS: C DIF: Easy REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Applying
6. Which key characteristic differentiates a prokaryote from a eukaryote?
a. the absence of proteins
b. the presence of DNA
c. the absence of membrane-bound organelles
d. the presence of a cell wall
ANS: C DIF: Easy REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Remembering
7. Which of the following methods for classifying life forms can best be used to distinguish between two
closely related rod-shaped bacterial organisms, Salmonella typhimurium and Escherichia coli?
a. physical characteristics c. DNA sequence comparison
b. method of reproduction d. environmental habitat
ANS: C DIF: Moderate REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Applying
8. Which of the following is always classified as a eukaryote?
a. papillomavirus c. Escherichia coli
b. methanogen d. yeast
ANS: D DIF: Moderate REF: 1.1
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OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Understanding
9. Which of the following has been used as a tool for gene therapy?
a. viruses c. protozoa
b. archaea d. fungi
ANS: A DIF: Easy REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Understanding
10. Which of the following would you not expect to find in the human digestive tract?
a. archaea c. bacteria
b. algae d. intestinal viruses
ANS: B DIF: Moderate REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Understanding
11. Antibiotics are chemotherapeutic drugs that function by inhibiting an important cellular structure or
process of an organism that is causing an infection. Which of the following would not be affected by
an antibiotic that targets cellular metabolic enzymes?
a. Streptococcus pyogenes bacteria c. ameba
b. Herpes virus d. bread mold
ANS: B DIF: Moderate REF: 1.1
OBJ: 1.1c Define viruses, and explain how they relate to living cells.
MSC: Analyzing
12. Which scientist is credited with constructing the first microscope?
a. Antonie van Leeuwenhoek c. Robert Hooke
b. Catherine of Siena d. Louis Pasteur
ANS: C DIF: Easy REF: 1.2
OBJ: 1.2a Explain how microbial diseases have changed human history.
MSC: Remembering
13. Which of the following was an unexpected benefit of the bubonic plague?
a. There was no benefit to the bubonic plague.
b. The population of Europe experienced a baby boom.
c. It resulted in a better understanding of aseptic practices and how to prevent the spread of
infection.
d. The population decline enabled the cultural advancement of the Renaissance.
ANS: D DIF: Easy REF: 1.2
OBJ: 1.2a Explain how microbial diseases have changed human history.
MSC: Understanding
14. Which of the following organisms would you NOT be able to see using Robert Hooke’s microscope?
a. vinegar eels c. mold filaments
b. dust mites d. Mycobacterium tuberculosis
ANS: D DIF: Moderate REF: 1.2
Chapter 01: Microbes Shape Our History
MULTIPLE CHOICE
1. Which of the following is NOT considered a benefit of microorganisms?
a. nitrogen fixation c. synthesis of vitamins
b. production of fermented foods d. causative agents of disease
ANS: D DIF: Easy REF: 1.1
OBJ: 1.1a Describe how we define a microbe, and explain why the definition is a challenge.
MSC: Remembering
2. A microbe that is 50 nm in size would most likely be
a. fungi. c. virus.
b. E. coli. d. algae.
ANS: C DIF: Moderate REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Applying
3. Based on the figure shown, the type of organism indicated with an arrow could be a
a. virus. c. macroscopic fungi.
b. bacteria. d. large ameba.
ANS: B DIF: Easy REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Applying
4. Based on the figure, the type of organism shown is a(n)
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a. virus. c. archaea.
b. bacteria. d. eukaryote.
ANS: D DIF: Moderate REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Applying
5. Which of the following demonstrates correct scientific notation of a bacterial organism?
a. Staphylococcus Epidermidis c. Staphylococcus epidermidis
b. Staphylococcus epidermidis d. Staphylococcus Epidermidis
ANS: C DIF: Easy REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Applying
6. Which key characteristic differentiates a prokaryote from a eukaryote?
a. the absence of proteins
b. the presence of DNA
c. the absence of membrane-bound organelles
d. the presence of a cell wall
ANS: C DIF: Easy REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Remembering
7. Which of the following methods for classifying life forms can best be used to distinguish between two
closely related rod-shaped bacterial organisms, Salmonella typhimurium and Escherichia coli?
a. physical characteristics c. DNA sequence comparison
b. method of reproduction d. environmental habitat
ANS: C DIF: Moderate REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Applying
8. Which of the following is always classified as a eukaryote?
a. papillomavirus c. Escherichia coli
b. methanogen d. yeast
ANS: D DIF: Moderate REF: 1.1
,https://www.stuvia.com/
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Understanding
9. Which of the following has been used as a tool for gene therapy?
a. viruses c. protozoa
b. archaea d. fungi
ANS: A DIF: Easy REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Understanding
10. Which of the following would you not expect to find in the human digestive tract?
a. archaea c. bacteria
b. algae d. intestinal viruses
ANS: B DIF: Moderate REF: 1.1
OBJ: 1.1b Describe the three major domains of life: Archaea, Bacteria, and Eukarya. Explain what
the three domains have in common and how they differ. MSC: Understanding
11. Antibiotics are chemotherapeutic drugs that function by inhibiting an important cellular structure or
process of an organism that is causing an infection. Which of the following would not be affected by
an antibiotic that targets cellular metabolic enzymes?
a. Streptococcus pyogenes bacteria c. ameba
b. Herpes virus d. bread mold
ANS: B DIF: Moderate REF: 1.1
OBJ: 1.1c Define viruses, and explain how they relate to living cells.
MSC: Analyzing
12. Which scientist is credited with constructing the first microscope?
a. Antonie van Leeuwenhoek c. Robert Hooke
b. Catherine of Siena d. Louis Pasteur
ANS: C DIF: Easy REF: 1.2
OBJ: 1.2a Explain how microbial diseases have changed human history.
MSC: Remembering
13. Which of the following was an unexpected benefit of the bubonic plague?
a. There was no benefit to the bubonic plague.
b. The population of Europe experienced a baby boom.
c. It resulted in a better understanding of aseptic practices and how to prevent the spread of
infection.
d. The population decline enabled the cultural advancement of the Renaissance.
ANS: D DIF: Easy REF: 1.2
OBJ: 1.2a Explain how microbial diseases have changed human history.
MSC: Understanding
14. Which of the following organisms would you NOT be able to see using Robert Hooke’s microscope?
a. vinegar eels c. mold filaments
b. dust mites d. Mycobacterium tuberculosis
ANS: D DIF: Moderate REF: 1.2
