Test Bank: Brock Biology of Microorganisms, 15th Edition by Madigan -all Chapters available| Rationals Included

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,Test Bank For Brock Biology of Microorganisms 15th Edition By Michael T. Madigan
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Brock Biology of Microorganisms, 15e (Madigan et al.)
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Chapter 1 The Microbial World
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1.1 Multiple Choice Questions b b




1) Which of the following statements is FALSE?
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A) Microbial cells can exist as single cells.
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B) Microbial cells carry out their life processes of growth independently.
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C) Microbial cells include both bacteria and viruses.
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D) Microbial cells are surrounded by a plasma membrane.
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2) Which of the following statements is correct?
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A) Microorganisms are significant contributors to the total biomass on Earth.
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B) Microorganisms represent a much smaller amount of Earth’s biomass than plants.
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C) Microorganisms represent a much smaller amount of Earth’s biomass than animals.
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D) Microorganisms are significant in number, but not in overall biomass.
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3) Differential selection and reproduction of phenotypes occurs during a process called
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A) cellular differentiation.
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B) evolution.
C) growth.
D) transformation.




4) In what/which domain(s) of life is/are microorganisms represented?
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A) Archaea
B) Bacteria
C) Eukarya
D) Archaea, Bacteria, and Eukarya
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5) Biological catalysts involved in the acceleration of the rate of chemical reactions are called
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A) catalytic converters.b

B) growth agents. b

C) evolutionary molecules. b

D) enzymes.



6) Regarding early life on Earthb b b b

A) microbial life existed for billions of years before plant and animal life.
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B) microbial life existed long before animals but has been around for about the same amount of time as plants.
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C) microbial life, plant life, and animal life all appeared at about the same time.
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D) it is impossible to determine which type of life first appeared.
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, 7) The person who described the “wee animalcules” was
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A) Robert Hooke. b

B) Antoni van Leeuwenhoek.b b

C) Louis Pasteur.
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D) Ferdinand Cohn. b




Chapter Section: 1.5
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8) Walther Hesse and b b b pioneered the use of agar as a solidifying agent.
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A) Louis Pasteur b

B) Ferdinand Cohn b

C) Robert Koch b

D) Sergei Winogradsky b




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9) Which of the following is/are characteristic of all cellular organisms?
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A) communication
B) evolution
C) motility
D) communication, evolution, and motility b b b




10) Deduce why viruses are excluded from the ribosomal RNA—based tree of life.
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A) Some viruses contain multiple strands of RNA.
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B) Their genetic elements cannot be sequenced.
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C) They can infect other organisms, which complicates the genetic comparisons.
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D) They lack ribosomal RNA (rRNA).
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11) Louis Pasteur developed the vaccine(s) for
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A) anthrax only. b

B) fowl cholera only.
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C) rabies only. b

D) anthrax, fowl cholera, and rabies.
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Chapter Section: 1.9
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12) The discovery of antibiotics and other important chemicals led to the field of
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A) industrial microbiology. b

B) agricultural microbiology. b

C) marine microbiology. b

D) aquatic microbiology. b




13) Microbial sterilization is used to b b b b

A) decrease the possibility of contaminants growing in a culture.
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B) kill bacteria but not necessarily viruses or other microbes.
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C) kill all microbes in or on objects.
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D) clean a work area.
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