,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. - C
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. - D
Applied microbiology deals with important practical problems in
A) medicine.
B) agriculture.
C) industry.
D) medicine, agriculture, and industry. - D
The largest mass of living material on Earth comes from
A) microorganisms.
B) plants.
C) animals.
D) plants and animals together. - A
Differential selection and reproduction of phenotypes occurs during a process called
A) cellular differentiation.
B) evolution.
C) growth.
D) transformation. - B
In what/which domain(s) of life is/are microorganisms represented?
A) Archaea
B) Bacteria
C) Eukarya
D) Archaea, Bacteria, and Eukarya - D
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 - D
,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. - D
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. - A
Most prokaryotic cells reside
A) on Earth's surface.
B) in lakes, rivers, and oceans.
C) in and on nonprokaryotic organisms (including humans and other animals).
D) in the oceanic and terrestrial subsurfaces. - D
The person who described the "wee animalcules" was
A) Robert Hooke.
B) Antoni van Leeuwenhoek.
C) Louis Pasteur.
D) Ferdinand Cohn. - B
Fannie Hesse is credited with giving ________ the idea to use agar as a solidifying
agent.
A) Louis Pasteur
B) Ferdinand Cohn
C) Robert Koch
D) Sergei Winogradsky - C
Which of the following is/are characteristic of ALL cellular organisms?
A) communication
B) evolution
C) motility
D) communication, evolution, and motility - B
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. - D
Which statement is TRUE?
A) Populations are assemblages of microbial communities.
, B) Microbial communities are assemblages of populations.
C) Habitats are assemblages of microbial communities.
D) Populations are assemblages of habitats. - B
Louis Pasteur developed the vaccine(s) for
A) anthrax.
B) fowl cholera.
C) rabies.
D) anthrax, fowl cholera, and rabies. - D
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. - A
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. - C
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. - A
Microbes playing a role in nitrogen fixation in plants live in ________, while those
playing a role in the digestive tract of certain herbivores live in ________.
A) rumens / nodules
B) nodules / rumens
C) nodules / fortrans
D) fortrans / rumens - B
Which of the following is NOT an accomplishment of Louis Pasteur?
A) determined that the alcohol-making process was mediated by microbial fermentation
and thus refuted the theory of spontaneous generation
B) developed enrichment culture techniques
C) developed heat sterilization techniques that involved the creation of a specialized
swan-necked flask
D) developed the first rabies vaccine and treated thousands of individuals - B
The theory of spontaneous generation was refuted by the work of
A) Louis Pasteur.
B) Robert Koch.
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