Complete Test Bank Brock Biology of Microorganisms 16th Edition Madigan Questions & Answers with rationales (Chapter 1-34)

,TEST BANK FOR BROCK BIOLOGY OF MICROOR
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GANISM
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16TH
Test Bank For Brock
sx Biology ofEDITION
sx Microorganisms 15th BY MICHAEL
Edition By
sx sx Michael T. Madi T. MADIGAN
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Chapter 1 The Microbial World
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1.1 Multiple Choice Questions sx sx

Brock Biology of Microorganisms, 15e (Madigan et al.)
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. sx

B) growth agents. sx

C) evolutionary molecules. sx

D) enzymes.



6) Regarding early life on Earth sx sx sx sx

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. sx

B) Antoni van Leeuwenhoek.
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C) Louis Pasteur.
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D) Ferdinand Cohn. sx




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

B) Ferdinand Cohn sx

C) Robert Koch sx

D) Sergei Winogradskysx




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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 sx sx sx




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. sx

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

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. sx

B) agricultural microbiology. sx

C) marine microbiology. sx

D) aquatic microbiology. sx




13) Microbial sterilization is used to sx sx sx sx

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: 1.9sx sx




14) Transparent double-sided dishes used for growing microbes are most commonly called
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A) Petri dishes. sx

B) baker dishes. sx

C) sterilization plates. sx

D) culture medium plates. sx sx




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15) Microbes playing a role in nitrogen fixation in plants live in
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, while those playing a role in the digestive tract of certain herbivores live in .
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A) rumens / nodules sx sx

B) nodules / rumens sx sx

C) nodules / fortrans sx sx

D) fortrans / rumens sx sx




16) Which of the following is NOT an accomplishment of Louis Pasteur?
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A) determined that the alcohol- sx sx sx

making process was mediated by microbial fermentation and thus refuted the theory of spontaneous generation
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B) developed enrichment culture techniques sx sx sx

C) developed heat sterilization techniques that involved the creation of a specialized swan-necked flask
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D) developed the first rabies vaccine and treated thousands of individuals
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Chapter Section: 1.9sx sx




17) The theory of spontaneous generation was refuted by the work of
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A) Louis Pasteur. sx

B) Robert Koch. sx

C) Robert Hooke. sx


D) Antoni van Leeuwenhoek. sx sx




Chapter Section: 1.9sx sx




18) A Pasteur flask has a(n)
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A) swan neck to prevent particulate matter from getting into the main body of the flask.
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B) double neck so two substances may be added at the same time.
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C) secondary opening at the base to allow for drainage.
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D) inverted upper edge to prevent spillage while swirling.
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Chapter Section: 1.9sx sx




19) Predict how Pasteur’s conclusions on spontaneous generation with swan flasks would have changed if he worked with
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and maintained the flasks in a sterile laminar flow hood.
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A) Sterilization of the swan flask solutions would not have been necessary to reject spontaneous generation. If he did ste
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rilize the flasks, the spontaneous generation hypothesis would have been supported.
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B) His incubation times would not have been sufficient to refute spontaneous generation.
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C) Pasteur’s flasks never would have putrefied, and the experiment would not have refuted spontaneous generation.
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D) Viruses would have still been present, and his conclusion would have been unchanged.
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