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Chapter 1 The Microbial World
1.1 Multiple Choice Questions
1) Which of the following statements is FALSE?
A) Microbial cells can exist as single cells.
B) Microbial cells carry out their life processes of growth independently.
C) Microbial cells include both bacteria and viruses.
D) Microbial cells are surrounded by a plasma membrane.
2) Which of the following statements is correct?
A) Microorganisms are significant contributors to the total biomass on Earth.
B) Microorganisms represent a much smaller amount of Earth’s biomass than plants.
C) Microorganisms represent a much smaller amount of Earth’s biomass than animals.
D) Microorganisms are significant in number, but not in overall biomass.
3) Differential selection and reproduction of phenotypes occurs during a process called
A) cellular differentiation.
B) evolution.
C) growth.
D) transformation.
4) In what/which domain(s) of life is/are microorganisms represented?
A) Archaea
B) Bacteria
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C) Eukarya
D) Archaea, Bacteria, and Eukarya
5) Biological catalysts involved in the acceleration of the rate of chemical reactions are
called
A) catalytic converters.
B) growth agents.
C) evolutionary molecules.
D) enzymes.
6) Regarding early life on Earth
A) microbial life existed for billions of years before plant and animal life.
B) microbial life existed long before animals but has been around for about the same amount
of time as plants.
C) microbial life, plant life, and animal life all appeared at about the same time.
D) it is impossible to determine which type of life first appeared.
7) The person who described the “wee animalcules” was
A) Robert Hooke.
B) Antoni van Leeuwenhoek.
C) Louis Pasteur.
D) Ferdinand Cohn.
Chapter Section: 1.5
8) Walther Hesse and pioneered the use of agar as a solidifying agent.
A) Louis Pasteur
B) Ferdinand Cohn
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C) Robert Koch
D) Sergei Winogradsky
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9) Which of the following is/are characteristic of all cellular organisms?
A) communication
B) evolution
C) motility
D) communication, evolution, and motility
10) Deduce why viruses are excluded from the ribosomal RNA—based tree of life.
A) Some viruses contain multiple strands of RNA.
B) Their genetic elements cannot be sequenced.
C) They can infect other organisms, which complicates the genetic comparisons.
D) They lack ribosomal RNA (rRNA).
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11) Louis Pasteur developed the vaccine(s) for
A) anthrax only.
B) fowl cholera only.
C) rabies only.
D) anthrax, fowl cholera, and rabies.
Chapter Section: 1.9
12) The discovery of antibiotics and other important chemicals led to the field of
A) industrial microbiology.
B) agricultural microbiology.
C) marine microbiology.
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Chapter 1 The Microbial World
1.1 Multiple Choice Questions
1) Which of the following statements is FALSE?
A) Microbial cells can exist as single cells.
B) Microbial cells carry out their life processes of growth independently.
C) Microbial cells include both bacteria and viruses.
D) Microbial cells are surrounded by a plasma membrane.
2) Which of the following statements is correct?
A) Microorganisms are significant contributors to the total biomass on Earth.
B) Microorganisms represent a much smaller amount of Earth’s biomass than plants.
C) Microorganisms represent a much smaller amount of Earth’s biomass than animals.
D) Microorganisms are significant in number, but not in overall biomass.
3) Differential selection and reproduction of phenotypes occurs during a process called
A) cellular differentiation.
B) evolution.
C) growth.
D) transformation.
4) In what/which domain(s) of life is/are microorganisms represented?
A) Archaea
B) Bacteria
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,Created By: A Solution
C) Eukarya
D) Archaea, Bacteria, and Eukarya
5) Biological catalysts involved in the acceleration of the rate of chemical reactions are
called
A) catalytic converters.
B) growth agents.
C) evolutionary molecules.
D) enzymes.
6) Regarding early life on Earth
A) microbial life existed for billions of years before plant and animal life.
B) microbial life existed long before animals but has been around for about the same amount
of time as plants.
C) microbial life, plant life, and animal life all appeared at about the same time.
D) it is impossible to determine which type of life first appeared.
7) The person who described the “wee animalcules” was
A) Robert Hooke.
B) Antoni van Leeuwenhoek.
C) Louis Pasteur.
D) Ferdinand Cohn.
Chapter Section: 1.5
8) Walther Hesse and pioneered the use of agar as a solidifying agent.
A) Louis Pasteur
B) Ferdinand Cohn
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, Created By: A Solution
C) Robert Koch
D) Sergei Winogradsky
0
9) Which of the following is/are characteristic of all cellular organisms?
A) communication
B) evolution
C) motility
D) communication, evolution, and motility
10) Deduce why viruses are excluded from the ribosomal RNA—based tree of life.
A) Some viruses contain multiple strands of RNA.
B) Their genetic elements cannot be sequenced.
C) They can infect other organisms, which complicates the genetic comparisons.
D) They lack ribosomal RNA (rRNA).
3
11) Louis Pasteur developed the vaccine(s) for
A) anthrax only.
B) fowl cholera only.
C) rabies only.
D) anthrax, fowl cholera, and rabies.
Chapter Section: 1.9
12) The discovery of antibiotics and other important chemicals led to the field of
A) industrial microbiology.
B) agricultural microbiology.
C) marine microbiology.
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