OpenStax Microbiology Test Bank- Chapter 01: An Invisible World
Multiple Choice
1. Which of the following is true of the microbial world?
A. All microbes are harmful.
B. Humans could survive without microbes.
C. Many microbes are helpful.*
D. Most microbes are pathogenic.
Difficulty: Easy
...
openstax microbiology test bank chapter 01 an invisible world
multiple choice 1 which of the following is true of the microbial world a all microbes are harmful b humans could survive without m
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OpenStax Microbiology Test Bank- Chapter 01: An Invisible World
* = Correct answer
Multiple Choice
1. Which of the following is true of the microbial world?
A. All microbes are harmful.
B. Humans could survive without microbes.
C. Many microbes are helpful.*
D. Most microbes are pathogenic.
Difficulty: Easy
ASM Standard: 23, 24
2. Which of the following is when humans first suspected the existence of microbes?
A. during the Industrial Revolution
B. in prehistoric times*
C. in the last century
D. within the last 500 years
Difficulty: Easy
ASM Standard: 23
3. Which individual first observed unicellular organisms, which he called “animalcules,”
usinga microscope he developed?
A. Robert Koch
B. Louis Pasteur
C. Thucydides
D. Antonie van Leeuwenhoek*
Difficulty: Easy
ASM Standard: 6
4. To reduce the risk of open flame from Bunsen burners, microbiologists are increasingly
usingwhich of the following devices for easy, rapid benchtop sterilization of small pieces of
equipment?
A. autoclaves
B. ethylene oxide
C. incubators
D. microincinerators*
Difficulty: Easy
ASM Standard: 36
,5. The Swedish botanist known for having developed an important biological
classificationsystem is which of the following people?
A. Ernst Haeckel
B. Carolus Linnaeus*
C. Louis Pasteur
D. Robert Whittaker
Difficulty: Easy
ASM Standard:
N/A
6. Which kingdom was the only one found in Empire Prokaryota?
A. Animalia
B. Fungi
C. Monera*
D. Protista
Difficulty: Easy
ASM Standard:
N/A
7. Which are the three currently accepted domains?
A. Archaea, Bacteria, and Eukarya*
B. Archaea, Prokaryota, and Eukaryota
C. Bacteria, Fungi, and Protista
D. Bacteria, Prokaryota, and Eukarya
Difficulty: Easy
ASM Standard:
N/A
8. Which two taxonomic units are typically used to identify an organism when using
binomialnomenclature?
A. domain and kingdom
B. genus and family
C. genus and species*
D. phylum and class
Difficulty: Easy
ASM Standard:
N/A
9. Which of the following is not true about the process of fermentation?
A. It can help preserve foods, preventing spoilage.
B. It converts sugars to organic acids, alcohols, and/or gases such as carbon dioxide.
C. It is carried out exclusively by unicellular eukaryotes such as yeast.*
, D. It is used to make foods such as cheese and bread.
Difficulty: Moderate
ASM Standard: 11, 23, 26
10. The Romans may have reduced their risk of waterborne infectious diseases by using which
ofthe following?
A. a variety of pharmaceutical products
B. aqueducts and a sewer system*
C. prophylactic antibiotics
D. quarantine of people with leprosy
Difficulty: Moderate
ASM Standard: 23
11. For which of the following is Thucydides known?
A. developing an effective sewer system in ancient Greece, helping to reduce levels
ofdisease in cities
B. observing microbes, using a microscope, for the first time, even distinguishing
betweenbacteria and fungi
C. proposing that disease was caused by microorganisms
D. realizing that people who had been infected by the Athenian plague had immunity
toreinfection*
Difficulty: Moderate
ASM Standard: 23, 31
12. Ernst Haeckel proposed a classification system consisting of which of the
followingsubgroups?
A. five kingdoms
B. four kingdoms*
C. two domains and three kingdoms
D. two domains and five kingdoms
Difficulty: Moderate
ASM Standard:
N/A
13. Viruses not included in phylogenetic trees for which of the following reasons?
A. It is too difficult to observe their characteristics.
B. They are acellular and nonliving.*
C. They do not have any genes, which prevents genetic analysis.
D. They lack a nucleus.
Difficulty: Moderate
ASM Standard: 5
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