1
Microbiology Chapter 1 Test Bank Questions With
Complete Solutions
Which of the following statement 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 cytoplasmic membrane. - (answers)C. Microbial cells
include both bacteria and viruses
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. - (answers)A.
Microorganisms are significant contributors to the total biomass of the Earth
Differential selection and decent with modification occurs during a process called
A) cellular differentiation.
B) evolution.
C) growth.
D) transformation. - (answers)B. evolution
In what/which domain(s) of life is/are microorganisms represented?
A) Archaea
B) Bacteria
C) Eukarya
D) Archaea, Bacteria, and Eukarya - (answers)D. Archaea, Bacteria, and Eukarya
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. - (answers)D. enzymes
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. - (answers)A. microbial life
existed for billions of years before plant and animal life.
The person who described the "wee animalcules" was
A) Robert Hooke.
, 2
B) Antoni van Leeuwenhoek.
C) Louis Pasteur.
D) Ferdinand Cohn. - (answers)B. Antoni van Leeuwenhoek
Walther Hesse and ________ pioneered the use of agar as a solidifying agent. A) Louis Pasteur
B) Ferdinand Cohn
C) Robert Koch
D) Sergei Winogradsky - (answers)C. Robert Koch
Which of the following is/are characteristic of all cellular organisms?
A) Communication
B) Evolution
C) Motility
D) Communication, evolution, and motility - (answers)B. Evolution
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). - (answers)D. They lack ribosomal RNA (rRNA)
Louis Pasteur developed the vaccine(s) for
A) anthrax only.
B) fowl cholera only.
C) rabies only.
D) anthrax, fowl cholera, and rabies. - (answers)D. anthrax, fowl cholera, and rabies
The discovery of antibiotics and other important chemicals led to the field of
A) industrial microbiology.
B) agricultural microbiology.
C) marine microbiology.
D) aquatic microbiology. - (answers)A. industrial microbiology
Microbial sterilization is used to
A) decrease the possibility of contaminants growing in a culture.
B) kill bacteria but not necessarily viruses or other microbes.
C) kill all microbes in or on objects.
D) clean a work area. - (answers)C. kill al microbes in or on objects
Transparent double-sided dishes used for growing microbes are most commonly called
A) Petri dishes.
B) baker dishes.
C) sterilization plates.
D) culture medium plates. - (answers)A. petri dishes
Microbiology Chapter 1 Test Bank Questions With
Complete Solutions
Which of the following statement 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 cytoplasmic membrane. - (answers)C. Microbial cells
include both bacteria and viruses
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. - (answers)A.
Microorganisms are significant contributors to the total biomass of the Earth
Differential selection and decent with modification occurs during a process called
A) cellular differentiation.
B) evolution.
C) growth.
D) transformation. - (answers)B. evolution
In what/which domain(s) of life is/are microorganisms represented?
A) Archaea
B) Bacteria
C) Eukarya
D) Archaea, Bacteria, and Eukarya - (answers)D. Archaea, Bacteria, and Eukarya
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. - (answers)D. enzymes
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. - (answers)A. microbial life
existed for billions of years before plant and animal life.
The person who described the "wee animalcules" was
A) Robert Hooke.
, 2
B) Antoni van Leeuwenhoek.
C) Louis Pasteur.
D) Ferdinand Cohn. - (answers)B. Antoni van Leeuwenhoek
Walther Hesse and ________ pioneered the use of agar as a solidifying agent. A) Louis Pasteur
B) Ferdinand Cohn
C) Robert Koch
D) Sergei Winogradsky - (answers)C. Robert Koch
Which of the following is/are characteristic of all cellular organisms?
A) Communication
B) Evolution
C) Motility
D) Communication, evolution, and motility - (answers)B. Evolution
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). - (answers)D. They lack ribosomal RNA (rRNA)
Louis Pasteur developed the vaccine(s) for
A) anthrax only.
B) fowl cholera only.
C) rabies only.
D) anthrax, fowl cholera, and rabies. - (answers)D. anthrax, fowl cholera, and rabies
The discovery of antibiotics and other important chemicals led to the field of
A) industrial microbiology.
B) agricultural microbiology.
C) marine microbiology.
D) aquatic microbiology. - (answers)A. industrial microbiology
Microbial sterilization is used to
A) decrease the possibility of contaminants growing in a culture.
B) kill bacteria but not necessarily viruses or other microbes.
C) kill all microbes in or on objects.
D) clean a work area. - (answers)C. kill al microbes in or on objects
Transparent double-sided dishes used for growing microbes are most commonly called
A) Petri dishes.
B) baker dishes.
C) sterilization plates.
D) culture medium plates. - (answers)A. petri dishes
