Microbiology: An Introduction Plus Mastering Microbiology 13th Edition Test Bank / A Complete Test Bank for Microbiology: An Introduction Plus Mastering Microbiology 13th Edition (Latest 2026 / 2027)

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Microbiology: An Introduction, 13e (Tortora et al.)
Chapter 1 The Microbial World and You

1.1 Multiple-Choice Questions

1) Microorganisms are involved in each of the following processes EXCEPT
A) infection.
B) decomposition of organic material.
C) O2 production.
D) food production.
E) smog production.
Answer: E
Section: 1.1
Bloom's Taxonomy: Remembering
Learning Outcome: 1.1
Global Outcome: 5

2) Each of the following organisms would be considered a microbe EXCEPT
A) yeast.
B) protozoan.
C) bacterium.
D) mushroom.
E) virus.
Answer: D
Section: 1.1
Bloom's Taxonomy: Remembering
Learning Outcome: 1.4

3) The term used to describe a disease-causing microorganism is
A) microbe.
B) bacterium.
C) virus.
D) pathogen.
E) infection.
Answer: D
Section: 1.1
Bloom's Taxonomy: Remembering
Learning Outcome: 1.1




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4) Common commercial benefits of microorganisms include synthesis of
A) riboflavin.
B) acetone.
C) insulin.
D) aspirin.
E) riboflavin, acetone and insulin.
Answer: E
Section: 1.1
Bloom's Taxonomy: Remembering
ASMcue Outcome: 6.3
Learning Outcome: 1.1

5) What factors contribute to the rising incidence of antibiotic resistance?
A) overuse of the specific drugs
B) misuse of the specific drugs
C) random mutations in bacterial genomes
D) random mutations, overuse and misuse of specific drugs
E) overuse and misuse of specific drugs
Answer: D
Section: 1.5
Bloom's Taxonomy: Understanding
ASMcue Outcome: 4.1
Learning Outcome: 1.19
Global Outcome: 5

6) The formal system for classifying and naming organisms was developed by
A) Robert Koch.
B) Ignaz Semmelweis.
C) Aristotle.
D) Carolus Linnaeus.
E) Louis Pasteur.
Answer: D
Section: 1.2
Bloom's Taxonomy: Remembering
Learning Outcome: 1.3

7) In the name Staphylococcus aureus, aureus is the
A) genus.
B) domain name.
C) species.
D) kingdom.
E) family name.
Answer: C
Section: 1.2
Bloom's Taxonomy: Understanding
Learning Outcome: 1.3


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8) A prokaryotic cell may possess each of the following cellular components EXCEPT
A) flagella.
B) a nucleus.
C) ribosomes.
D) a cell wall.
E) a cell membrane.
Answer: B
Section: 1.2
Bloom's Taxonomy: Remembering
ASMcue Outcome: 2.1
Learning Outcome: 1.4

9) Which of the following is NOT associated with viruses?
A) organelles
B) nucleic acid
C) envelope
D) chemical reactions
E) protein coat
Answer: A
Section: 1.2
Bloom's Taxonomy: Understanding
ASMcue Outcome: 2.1
Learning Outcome: 1.4




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10) Figure 1.1




The bacterial shape of the cells in the scanning electron micrograph shown in Figure 1.1 would
best be described as
A) bacillus.
B) spiral.
C) coccus.
D) ovoid.
E) columnar.
Answer: A
Section: 1.2
Bloom's Taxonomy: Understanding
ASMcue Outcome: 2.1
Learning Outcome: 1.4

11) Protozoan motility structures include
A) cilia.
B) flagella.
C) pseudopods.
D) cilia and pseudopods only.
E) cilia, flagella, and pseudopods.
Answer: E
Section: 1.2
Bloom's Taxonomy: Remembering
Learning Outcome: 1.4

12) Viruses are not considered living organisms because they
A) cannot reproduce by themselves.
B) are structurally very simple.
C) can only be visualized using an electron microscope.
D) are typically associated with disease.
E) are ubiquitous in nature.
Answer: A
Section: 1.2
Bloom's Taxonomy: Remembering
ASMcue Outcome: 4.4

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