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y THIS TEST BANK COVERS ALL CHAPTERS DP DP DP DP DP DP DP
1-26 OF THE BOOK, Answered DP DP DP DP
Chapter 1: An Invisible World DP DP DP DP
* =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. DP DP DP
B. Humans could survive without microbes. DP DP DP DP
C. Many microbes are helpful.* DP DP DP
D. Most microbes are pathogenic. DP DP DP
Difficulty: Easy DP
ASM Standard: 23, 24
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2. Whichof the following is when humans first suspected theexistence of microbes?
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A. during the Industrial Revolution DP DP DP
B. in prehistoric times*
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C. in the last centuryDP DP DP
D. within the last 500 years DP DP DP DP
Difficulty: Easy DP
ASMStandard:23
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3. Which individual first observed unicellularorganisms, which he called
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“animalcules,” using a microscope he developed?
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A. Robert Koch DP
B. Louis Pasteur DP
C. Thucydides
D. Antonie van Leeuwenhoek* DP DP
Difficulty: Easy DP
ASMStandard:6
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4. To reduce the risk of open flamefrom 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 DP
C. incubators
D. microincinerators*
Difficulty: Easy DP
ASMStandard:36
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,5. The Swedish botanistknown 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 DP
B. Carolus Linnaeus* DP
C. Louis Pasteur DP
D. RobertWhittaker DP
Difficulty: Easy DP
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 DP
ASMStandard:N/A
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7. Which are the three currently accepted domains?
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A. Archaea, Bacteria, andEukarya* DP DP DP
B. Archaea, Prokaryota, and Eukaryota DP DP DP
C. Bacteria, Fungi, and Protista DP DP DP
D. Bacteria,Prokaryota, and Eukarya D
P DP DP
Difficulty: Easy DP
ASMStandard:N/A
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8. Which two taxonomicunits are typically used to identify an organism when using
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binomial nomenclature?
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A. domain and kingdom DP DP
B. genus and family DP DP
C. genus and species* DP DP
D. phylum and class DP DP
Difficulty: Easy DP
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 DP
ASM Standard: 11, 23, 26
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,10. The Romans may have reduced their risk of waterborne infectiousdiseases by using
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which of the following?
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A. a variety of pharmaceutical products
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B. aqueducts and a sewer system* DP DP DP DP
C. prophylactic antibiotics DP
D. quarantineof people with leprosy DP DP DP DP
Difficulty:Moderate D
P
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 DP DP DP DP DP DP DP DP DP DP
levels of disease in cities
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B. observing microbes, using a microscope, forthe first time, even distinguishing DP DP DP DP DP DP DP DP DP DP
between bacteria and fungi
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C. proposing that disease was caused bymicroorganisms DP DP DP DP DP DP
D. realizing that people who had been infected by the Athenian plague had DP DP DP DP DP DP DP DP DP DP DP
immunity to reinfection*
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Difficulty: Moderate DP
ASMStandard:23,31
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12. Ernst Haeckel proposed a classification system consisting of which of the
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following subgroups?
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A. five kingdoms DP
B. four kingdoms* DP
C. two domains and three kingdoms
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D. two domains and five kingdoms
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Difficulty:Moderate D
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ASMStandard: N/A
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13. Viruses not included in phylogenetic trees forwhich 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.* DP DP DP DP
C. They do not have any genes, which prevents genetic analysis.
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D. They lack a nucleus. DP DP DP
Difficulty:Moderate D
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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. DP DP DP DP DP DP DP DP
B. Phylogenies show all the common names for each species. DP DP DP DP DP DP DP DP
C. Phylogenies showevolutionaryrelatednessbetween organisms.* DP DP DP D
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, D. Phylogenies show interactions between species in a shared habitat. DP DP DP DP DP DP DP DP
Difficulty:Moderate D
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ASM Standard: 5
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15. Current phylogenetic analyses include which of the following?
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A. informationfrom a range of sources, including morphological, genetic, and DP DP DP DP DP DP DP DP DP
biochemical data*
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B. informationon visible similarities only DP DP DP DP
C. information regarding how to classify organisms on the basis of external DP DP DP DP DP DP DP DP DP DP
morphological characteristics and visible behaviors
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D. varied morphological and structural characteristics, with preference forleaving
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historical classifications to prevent confusion
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Difficulty:Moderate D
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ASM Standard: 5
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16. Diatomsare classified within which of the following domains?
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A. Archaea
B. Bacteria
C. Eukarya*
D. Prokaryota
Difficulty:Moderate D
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ASMStandard: N/A
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17. Horizontal gene transfer involves which of the following? DP DP DP DP DP DP DP
A. anytransfer 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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form of gene transfer
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C. the transfer of genes from one individual to another, including from one
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species to another, but not from parent to offspring*
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D. the transferof genes from parent to offspring
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Difficulty: Moderate DP
ASMStandard: 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. primarilymorphological characteristics of individual cells D
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Difficulty: Moderate DP
ASMStandard:34,36
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