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