Test Bank For Brock Biology of Microorganisms 15th Edition
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By Michael T. Madigan 2024 A+
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Chapter 1 The Microbial World vi vi vi vi
1.1 Multiple Choice Questions
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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.
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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 vi vi vi
5)
Biological catalysts involved in the acceleration of the rate of chemical reactions are call
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ed
A) catalytic converters. vi
B) growth agents. vi
C) evolutionary molecules. vi
D) enzymes.
6) Regarding early life on Earth vi vi vi vi
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 amoun
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t 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. vi
B) Antoni van Leeuwenhoek. vi vi
C) Louis Pasteur. vi
D) Ferdinand Cohn. vi
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Chapter Section: 1.5
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8) Walther Hesse and vi vi pioneered the use of agar as a solidifying agent.
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A) Louis Pasteur
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B) Ferdinand Cohn vi
C) Robert Koch vi
D) Sergei Winogradsky
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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 vi vi vi
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. vi
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B) fowl cholera only.
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C) rabies only. vi
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. vi
B) agricultural microbiology. vi
C) marine microbiology. vi
D) aquatic microbiology. vi
13) Microbial sterilization is used to vi vi vi vi
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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Chapter Section: 1.9
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14) Transparent double-sided dishes used for growing microbes are most commonly called
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A) Petri dishes.
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B) baker dishes. vi
C) sterilization plates. vi
D) culture medium plates. vi vi
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