Brock Biology of Microorganisms Chapter 1
Exam Questions With Correct Answers
Which of the following statements is FALSE?
A) Microbial cells 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 exclude the cells of plants and animals. - answer✔C) Microbial cells include
both bacteria and viruses
Basic microbiology can be used to
A) probe the fundamental processes of life.
B) study characteristics of cells of multicellular organisms.
C) model our understanding of cellular processes in multicellular organisms, including humans.
D) probe the fundamental processes of life, study characteristics of cells of multicellular
organisms, and model our understanding of cellular processes in multicellular organisms,
including humans. - answer✔D) probe the fundamental processes of life, study characteristics of
cells of multicellular organisms, and model our understanding of cellular processes in
multicellular organisms, including humans.
Applied microbiology deals with important practical problems in
A) medicine.
B) agriculture.
C) industry.
D) medicine, agriculture, and industry. - answer✔D) medicine, agriculture and industry
The largest mass of living material on Earth comes from
A) microorganisms.
B) plants.
C) animals.
D) plants and animals together. - answer✔A) Microorganisms
Differential selection and reproduction of phenotypes occurs during a process called
A) cellular differentiation.
B) evolution.
C) growth.
D) transformation. - answer✔B) Evolution
In what/which domain(s) of life is/are microorganisms represented?
A) Archaea
B) Bacteria
C) Eukarya
D) Archaea, Bacteria, and Eukarya - answer✔D) Archaea, Bacteria, and Eukarya
Determine which outcome is LEAST likely for a microorganism being motile.
A) avoidance of predation by bacteriovores
B) maintaining osmotic balance within a salt gradient
C) movement towards growth substrates
D) transfer of plasmids to progeny - answer✔D) transfer of plasmids to progeny
Protein catalysts involved in the acceleration of the rate of chemical reactions are called
A) catalytic converters.
B) growth agents.
C) evolutionary molecules.
D) enzymes. - answer✔D) enzymes.
Regarding early life on Earth,
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