TEXTBOOK OF DIAGNOSTIC
MICROBIOLOGY 7TH EDITION TEST
BANK 2026 CHAPTERS 1 TO 41
COMPLETE QUESTIONS AND
VERIFIED ANSWERS
◉ Which of the following characterizes the Domain Bacteria?
A) prokaryotic cells; ether linkages in phospholipids
B) eukaryotic cells; ester linkages in phospholipids
C) prokaryotic cells; ester linkages in phospholipids
D) complex cellular structures
E) multicellular Answer: prokaryotic cells; ester linkages in
phospholipids
◉ If two organisms have similar rRNA sequences, you can conclude
that they
A) live in the same place.
B) evolved from a common ancestor.
C) will have different G-C ratios.
D) will both ferment lactose.
E) mated with each other. Answer: evolved from a common ancestor
◉ What is the outstanding characteristic of the Kingdom Fungi?
,A) All members are photosynthetic.
B) Members absorb dissolved organic matter.
C) Members absorb dissolved inorganic matter.
D) All members are microscopic.
E) All members are macroscopic. Answer: members absorb dissolved
organic matter
◉ Which of the following statements about members of the Kingdom
Plantae is FALSE?
A) They are multicellular.
B) They are composed of eukaryotic cells.
C) They undergo photosynthesis.
D) They use organic carbon sources.
E) They synthesize organic molecules. Answer: they use organic carbon
sources
◉ Which of the following statements about the members of the
Kingdom Animalia is FALSE?
A) They are multicellular.
B) They are composed of eukaryotic cells.
C) They undergo photosynthesis.
D) They ingest nutrients through a mouth.
E) They are heterotrophs. Answer: they undergo photosynthesis
,◉ A genus can best be defined as
A) a taxon composed of families.
B) a taxon composed of one or more species and a classification level
lying below family.
C) a taxon belonging to a species.
D) a taxon comprised of classes.
E) the most specific taxon. Answer: a taxon composed of one or more
species and a classification level lying below family
◉ A bacterial species differs from a species of eukaryotic organisms in
that a bacterial species
A) does not breed with other species.
B) has a limited geographical distribution.
C) can be distinguished from other bacterial species.
D) is a population of cells with similar characteristics.
E) breeds with its own species. Answer: is the population of cells with
similar characteristics
◉ Which of the following is the best evidence for a three-domain
system?
A) Nucleotide sequences in ribosomal RNA vary between all three
domains.
B) There are three distinctly different sets of metabolic reactions.
C) There are three distinctly different Gram reactions.
D) Some bacteria live in extreme environments.
, E) There are three distinctly different types of nuclei. Answer:
nucleotide sequences in ribosomal RNA vary between all three domains
◉ A biochemical test, in the microbiology world, is used to determine
A) staining characteristics.
B) amino acid sequences of enzymes.
C) nucleic acid-base composition of DNA sequences.
D) capability of a microbe to perform a specific enzymatic activity.
E) All of the answers are correct. Answer: capability of a microbe to
perform a specific enzymatic activity
◉ Which of the following is NOT based on nucleic-acid hybridization?
A) DNA chip
B) FISH
C) PCR
D) Southern blotting
E) Western blotting Answer: western blotting
◉ The phylogenetic classification of bacteria is based on
A) cell morphology.
B) Gram reaction.
C) rRNA sequences.
D) habitat.
E) diseases. Answer: rRNA sequences
MICROBIOLOGY 7TH EDITION TEST
BANK 2026 CHAPTERS 1 TO 41
COMPLETE QUESTIONS AND
VERIFIED ANSWERS
◉ Which of the following characterizes the Domain Bacteria?
A) prokaryotic cells; ether linkages in phospholipids
B) eukaryotic cells; ester linkages in phospholipids
C) prokaryotic cells; ester linkages in phospholipids
D) complex cellular structures
E) multicellular Answer: prokaryotic cells; ester linkages in
phospholipids
◉ If two organisms have similar rRNA sequences, you can conclude
that they
A) live in the same place.
B) evolved from a common ancestor.
C) will have different G-C ratios.
D) will both ferment lactose.
E) mated with each other. Answer: evolved from a common ancestor
◉ What is the outstanding characteristic of the Kingdom Fungi?
,A) All members are photosynthetic.
B) Members absorb dissolved organic matter.
C) Members absorb dissolved inorganic matter.
D) All members are microscopic.
E) All members are macroscopic. Answer: members absorb dissolved
organic matter
◉ Which of the following statements about members of the Kingdom
Plantae is FALSE?
A) They are multicellular.
B) They are composed of eukaryotic cells.
C) They undergo photosynthesis.
D) They use organic carbon sources.
E) They synthesize organic molecules. Answer: they use organic carbon
sources
◉ Which of the following statements about the members of the
Kingdom Animalia is FALSE?
A) They are multicellular.
B) They are composed of eukaryotic cells.
C) They undergo photosynthesis.
D) They ingest nutrients through a mouth.
E) They are heterotrophs. Answer: they undergo photosynthesis
,◉ A genus can best be defined as
A) a taxon composed of families.
B) a taxon composed of one or more species and a classification level
lying below family.
C) a taxon belonging to a species.
D) a taxon comprised of classes.
E) the most specific taxon. Answer: a taxon composed of one or more
species and a classification level lying below family
◉ A bacterial species differs from a species of eukaryotic organisms in
that a bacterial species
A) does not breed with other species.
B) has a limited geographical distribution.
C) can be distinguished from other bacterial species.
D) is a population of cells with similar characteristics.
E) breeds with its own species. Answer: is the population of cells with
similar characteristics
◉ Which of the following is the best evidence for a three-domain
system?
A) Nucleotide sequences in ribosomal RNA vary between all three
domains.
B) There are three distinctly different sets of metabolic reactions.
C) There are three distinctly different Gram reactions.
D) Some bacteria live in extreme environments.
, E) There are three distinctly different types of nuclei. Answer:
nucleotide sequences in ribosomal RNA vary between all three domains
◉ A biochemical test, in the microbiology world, is used to determine
A) staining characteristics.
B) amino acid sequences of enzymes.
C) nucleic acid-base composition of DNA sequences.
D) capability of a microbe to perform a specific enzymatic activity.
E) All of the answers are correct. Answer: capability of a microbe to
perform a specific enzymatic activity
◉ Which of the following is NOT based on nucleic-acid hybridization?
A) DNA chip
B) FISH
C) PCR
D) Southern blotting
E) Western blotting Answer: western blotting
◉ The phylogenetic classification of bacteria is based on
A) cell morphology.
B) Gram reaction.
C) rRNA sequences.
D) habitat.
E) diseases. Answer: rRNA sequences
