BROCK BIOLOGY OF MICROORGANISMS BY
MICHAEL T 2026 FINAL ASSESSMENT STUDY
GUIDE QUESTION VERIFIED ANSWERS A+
◉ Predict how Pasteur's conclusions on spontaneous generation
with swan flasks would have changed if he worked with and
maintained the flasks in a sterile laminar flow hood.
A) Sterilization of the swan flask solutions would not have been
necessary to reject spontaneous generation. If he did sterilize the
flasks, the spontaneous generation hypothesis would have been
supported.
B) His incubation times would not have been sufficient to refute
spontaneous generation.
C) Pasteur's flasks never would have putrefied, and the experiment
would not have refuted spontaneous generation.
D) Viruses would have still been present, and his conclusion would
have been unchanged. Answer: C
◉ A pure culture
A) is sterile.
B) is a population of identical cells.
C) is made of a clearly defined chemical medium.
D) contains one microbial cell. Answer: B
,◉ Martinus Beijerinck was the first to isolate
A) green algae.
B) certain nitrogen-fixing root nodule bacteria.
C) certain sulfate-reducing bacteria.
D) green algae, certain nitrogen-fixing root nodule bacteria, and
certain sulfate-reducing bacteria. Answer: D
◉ Chemolithotrophy involves
A) oxidation of organic compounds.
B) oxidation of inorganic compounds.
C) reduction of organic compounds.
D) metabolic autotrophy. Answer: B
◉ Developments in the fields of immunology and medical
microbiology were practical extensions of the work of
A) Sergei Winogradsky.
B) Antoni van Leeuwenhoek.
C) Joseph Lister.
D) Robert Koch. Answer: D
◉ Microbial control in wastewaters would most logically be a part of
,A) microbial genetics.
B) aquatic microbiology.
C) medical microbiology.
D) bacterial energetics. Answer: B
◉ Robert Koch contributed to the field of microbiology by being the
first person to
A) develop the tuberculin test.
B) formulate four postulates for definitively linking a specific
microorganism to a specific disease.
C) use agar as a solidifying agent in growth media.
D) develop the tuberculin test, formulate four postulates for
definitively linking a specific microorganism to a specific disease,
and use agar as a solidifying agent in growth media. Answer: D
◉ The science of grouping and classifying microorganisms is known
as
A) microbial physiology.
B) proteomics.
C) metabolomics.
D) microbial systematics. Answer: D
, ◉ Mycobacterium tuberculosis is very difficult to stain because of
the
A) presence of ribosomes in the cytoplasm.
B) location of the DNA within the cell.
C) large amounts of a waxy lipid present in its cell wall.
D) lack of a cell wall. Answer: C
◉ Louis Pasteur's most famous success was his work on
A) Mycobacterium tuberculosis.
B) the rabies vaccine.
C) optical isomers.
D) cultivation of E. coli. Answer: B
◉ Microorganisms play key roles in the cycling of important
nutrients in plant nutrition, particularly those of
A) carbon.
B) nitrogen.
C) sulfur.
D) carbon, nitrogen, and sulfur. Answer: D
◉ Microbial ecology is the study of
A) microbial processes in the rhizosphere that benefit plant growth.
MICHAEL T 2026 FINAL ASSESSMENT STUDY
GUIDE QUESTION VERIFIED ANSWERS A+
◉ Predict how Pasteur's conclusions on spontaneous generation
with swan flasks would have changed if he worked with and
maintained the flasks in a sterile laminar flow hood.
A) Sterilization of the swan flask solutions would not have been
necessary to reject spontaneous generation. If he did sterilize the
flasks, the spontaneous generation hypothesis would have been
supported.
B) His incubation times would not have been sufficient to refute
spontaneous generation.
C) Pasteur's flasks never would have putrefied, and the experiment
would not have refuted spontaneous generation.
D) Viruses would have still been present, and his conclusion would
have been unchanged. Answer: C
◉ A pure culture
A) is sterile.
B) is a population of identical cells.
C) is made of a clearly defined chemical medium.
D) contains one microbial cell. Answer: B
,◉ Martinus Beijerinck was the first to isolate
A) green algae.
B) certain nitrogen-fixing root nodule bacteria.
C) certain sulfate-reducing bacteria.
D) green algae, certain nitrogen-fixing root nodule bacteria, and
certain sulfate-reducing bacteria. Answer: D
◉ Chemolithotrophy involves
A) oxidation of organic compounds.
B) oxidation of inorganic compounds.
C) reduction of organic compounds.
D) metabolic autotrophy. Answer: B
◉ Developments in the fields of immunology and medical
microbiology were practical extensions of the work of
A) Sergei Winogradsky.
B) Antoni van Leeuwenhoek.
C) Joseph Lister.
D) Robert Koch. Answer: D
◉ Microbial control in wastewaters would most logically be a part of
,A) microbial genetics.
B) aquatic microbiology.
C) medical microbiology.
D) bacterial energetics. Answer: B
◉ Robert Koch contributed to the field of microbiology by being the
first person to
A) develop the tuberculin test.
B) formulate four postulates for definitively linking a specific
microorganism to a specific disease.
C) use agar as a solidifying agent in growth media.
D) develop the tuberculin test, formulate four postulates for
definitively linking a specific microorganism to a specific disease,
and use agar as a solidifying agent in growth media. Answer: D
◉ The science of grouping and classifying microorganisms is known
as
A) microbial physiology.
B) proteomics.
C) metabolomics.
D) microbial systematics. Answer: D
, ◉ Mycobacterium tuberculosis is very difficult to stain because of
the
A) presence of ribosomes in the cytoplasm.
B) location of the DNA within the cell.
C) large amounts of a waxy lipid present in its cell wall.
D) lack of a cell wall. Answer: C
◉ Louis Pasteur's most famous success was his work on
A) Mycobacterium tuberculosis.
B) the rabies vaccine.
C) optical isomers.
D) cultivation of E. coli. Answer: B
◉ Microorganisms play key roles in the cycling of important
nutrients in plant nutrition, particularly those of
A) carbon.
B) nitrogen.
C) sulfur.
D) carbon, nitrogen, and sulfur. Answer: D
◉ Microbial ecology is the study of
A) microbial processes in the rhizosphere that benefit plant growth.
