Test Bank for OSx Microbiology by OpenStax, All Chapters 1–26 – Latest 2025 Update

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OPENSTAX MICROBIOLOGY TEST BANK OpenStax
Microbiology THIS TEST BANK COVERS ALL CHAPTERS
1-26 OF THE BOOK, Answered
Chapter 1: 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,” using a 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 using which 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



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OsxOsx
microbiology
microbiology
by openstax
by openstax
all chapters
all chapters
1-261-26
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CHAPTERS
CHAPTERS
1-26
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OF OF
THETHE
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2/4/2026
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Osx microbiology by openstax all chapters 1-26 latest 2025 update - THIS TEST BANK COVERS ALL CHAPTERS 1-26 OF THE BOOK,
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5. The Swedish botanist known for having developed an important biological
classification system 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
binomial nomenclature?
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




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Test
bank
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for for
OsxOsx
microbiology
microbiology
by openstax
by openstax
all chapters
all chapters
1-261-26
latest
latest
20252025
update
update
- THIS
- THIS
TEST
TEST
BANK
BANK
COVERS
COVERS
ALLALL
CHAPTERS
CHAPTERS
1-26
1-26
OF OF
THETHE
BOOK,
BOOK,
2/4/2026
Answered
Answered