OPENSTAXMICROBIOLOGYTESTBANKOpenStax v v v v v
Microbiology THIS TEST BANK COVERS ALL CHAPTERS
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1-26 OF THE BOOK, Answered v v v v
Chapter 1: An Invisible World v v v v
* =Correctanswer
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Multiple Choice
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1. Which of the following is true of the microbial world?
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A. All microbes are harmful. v v v
B. Humans could survive without microbes. v v v v
C. Many microbes are helpful.* v v v
D. Most microbes are pathogenic. v v v
Difficulty: Easy v
ASM Standard: 23, 24
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2. Which of the following is when humans first suspected the existence of microbes?
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A. during the Industrial Revolution v v v
B. in prehistoric times*
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C. in the last century
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D. within the last 500 years v v v v
Difficulty: Easy v
ASMStandard:23
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3. Which individual first observed unicellular organisms, which he called
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“animalcules,” using a microscope he developed?
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A. Robert Koch v
B. Louis Pasteur v
C. Thucydides
D. Antonie van Leeuwenhoek* v v
Difficulty: Easy v
ASMStandard:6
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4. To reduce the risk of open flame from Bunsen burners, microbiologists are
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increasingly using which of the following devices for easy, rapid benchtop
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sterilization of small pieces of equipment?
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A. autoclaves
B. ethylene oxide v
C. incubators
D. microincinerators*
Difficulty: Easy v
ASMStandard:36
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,5. The Swedish botanist known for having developed an important biological
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classification system is which of the following people?
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A. Ernst Haeckel v
B. Carolus Linnaeus* v
C. Louis Pasteur v
D. Robert Whittaker v
Difficulty: Easy v
ASMStandard:N/A
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6. Which kingdom was the only one found in Empire Prokaryota?
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A. Animalia
B. Fungi
C. Monera*
D. Protista
Difficulty: Easy v
ASMStandard:N/A
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7. Which are the three currently accepted domains?
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A. Archaea, Bacteria, and Eukarya* v v v
B. Archaea, Prokaryota, and Eukaryota v v v
C. Bacteria, Fungi, and Protista v v v
D. Bacteria,Prokaryota, and Eukarya v v v
Difficulty: Easy v
ASMStandard:N/A
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8. Which two taxonomic units are typically used to identify an organism when using
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binomial nomenclature?
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A. domain and kingdom v v
B. genus and family v v
C. genus and species* v v
D. phylum and class v v
Difficulty: Easy v
ASMStandard:N/A
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9. Which of the following is not true about the process of fermentation?
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A. It can help preserve foods, preventing spoilage.
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B. It converts sugars to organic acids, alcohols, and/or gases such as carbon dioxide.
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C. It is carried out exclusively by unicellular eukaryotes such as yeast.*
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D. It is used to make foods such as cheese and bread.
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Difficulty: Moderate v
ASM Standard: 11, 23, 26
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,10. The Romans may have reduced their risk of waterborne infectious diseases by using
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vwhich of the following?
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A. a variety of pharmaceutical products
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B. aqueducts and a sewer system* v v v v
C. prophylactic antibiotics v
D. quarantine of people with leprosy v v v v
Difficulty:Moderate v
ASM Standard: 23
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11. For which of the following is Thucydides known?
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A. developing an effective sewer system in ancient Greece, helping to reduce v v v v v v v v v v
vlevels of disease in cities
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B. observing microbes, using a microscope, forthe first time, even distinguishing
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vbetween bacteria and fungi v v v
C. proposing that disease was caused by microorganisms v v v v v v
D. realizing that people who had been infected by the Athenian plague had
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vimmunity to reinfection* v v
Difficulty: Moderate v
ASMStandard:23,31
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12. Ernst Haeckel proposed a classification system consisting of which of the
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vfollowing subgroups? v
A. five kingdoms v
B. four kingdoms* v
C. two domains and three kingdoms
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D. two domains and five kingdoms
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Difficulty: Moderate v
ASM Standard: N/A
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13. Viruses not included in phylogenetic trees for which of the following reasons?
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A. It is too difficult to observe their characteristics.
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B. They are acellular and nonliving.*
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C. They do not have any genes, which prevents genetic analysis.
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D. They lack a nucleus. v v v
Difficulty:Moderate v
ASM Standard: 5
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14. Which is the best description of the primary purpose of a phylogeny?
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A. Phylogenies show all the alterative names for each species. v v v v v v v v
B. Phylogenies show all the common names for each species. v v v v v v v v
C. Phylogenies show evolutionary relatedness between organisms.* v v v v v
, D. Phylogenies show interactions between species in a shared habitat. v v v v v v v v
Difficulty:Moderate v
ASM Standard: 5
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15. Current phylogenetic analyses include which of the following?
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A. information from a range of sources, including morphological, genetic, and
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vbiochemical data* v
B. information on visible similarities only v v v v
C. information regarding how to classify organisms on the basis of external
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vmorphological characteristics and visible behaviors v v v v
D. varied morphological and structural characteristics, with preference for leaving
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vhistorical classifications to prevent confusion v v v v
Difficulty:Moderate v
ASM Standard: 5
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16. Diatoms are classified within which of the following domains?
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A. Archaea
B. Bacteria
C. Eukarya*
D. Prokaryota
Difficulty: Moderate v
ASM Standard: N/A
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17. Horizontal gene transfer involves which of the following?
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A. any transfer of genes in a laboratory setting
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B. the transfer of genes from a virus to a bacterium or vice versa but not any other
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vform of gene transfer
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C. the transfer of genes from one individual to another, including from one
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vspecies to another, but not from parent to offspring*
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D. the transfer of genes from parent to offspring
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Difficulty: Moderate v
ASM Standard: 2, 4
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18. Bacteria are generally identified to species byusing which of the following?
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A. a combination of genetic, biochemical, and microscopic approaches*
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B. a combination of microscopic and physiological approaches, but not genetics
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C. primarily characteristics such as motility that can be visualized using microscopy
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D. primarily morphological characteristics of individual cells
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Difficulty: Moderate v
ASMStandard:34,36
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