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