1.What is the purpose of the science of taxonomy?
A) To study
bacterial growth
B) To classify and name organisms
C) To
measure bacterial motility
D) To identify bacterial spores
B) To classify and name organisms
1.Which of the following domains contains organisms with prokaryotic
cells?
A) Eukarya
B) Archaea
C) Bacteria
D)
Both B and C
D) Both B and C
1.In the hierarchical taxonomic system, similar species are placed
into the same:
A) Family
B) Order
C) Genus
D) Class
C) Genus
1.What distinguishes the bacterial phyla Firmicutes and
Actinobacteria?
A) Their cell shape
B) The percentage of
Guanine and Cytosine (G + C) bases in their DNA
C) Their ability
to form spores
D) Their metabolic pathways
B) The percentage of Guanine and Cytosine (G + C) bases in their DNA
1.Which of the following genera is NOT part of the Firmicutes phylum?
A) Bacillus
B) Clostridium
C) Mycobacterium
D) Lactobacillus
C) Mycobacterium
1.What is unique about the metabolic strategy of Cyanobacteria?
A) They are Gram-positive
B) They utilize oxygenic
photosynthesis
C) They have no cell wall
D) They are
obligate anaerobes
B) They utilize oxygenic photosynthesis
1.Which genus within the Proteobacteria phylum is known for nitrogen
fixation?
A) Escherichia
B) Pseudomonas
C) Rhizobium
D) Salmonella
C) Rhizobium
1.What is unique about the cell walls of bacteria in the phylum
Chlamydiae?
A) They contain high levels of peptidoglycan
B) They have little or no peptidoglycan
C) They are
resistant to all antibiotics
D) They are composed of cellulose
B) They have little or no peptidoglycan
1.What materials are needed to study the morphology of key bacterial
genera?
A) Only blank notecards
B) Prepared slides,
microscopes, and staining materials
C) Only textbooks
D)
Only Petri dishes
B) Prepared slides, microscopes, and staining materials
1.What should be included on the flashcards for each bacterial
phylum?
A) Only the phylum name
B) The phylum name,
characteristics, and names of key genera
C) Only the
characteristics
D) Only the names of key genera
B) The phylum name, characteristics, and names of key genera
1.Which phylum has a Gram-positive reaction and low G + C content in
DNA?
A) Actinobacteria
B) Firmicutes
C)
Proteobacteria
D) Cyanobacteria
B) Firmicutes
1.What is the dominant metabolic strategy of Actinobacteria?
A)
Oxygenic photosynthesis
B) Chemoheterotrophy
C) Nitrogen
fixation
D) Fermentation
B) Chemoheterotrophy
1.Which key genera belong to the Firmicutes phylum?
A)
Escherichia, Pseudomonas, Rhizobium
B) Bacillus, Clostridium,
Lactobacillus
C) Mycobacterium, Streptomyces
D) Anabaena, Chlamydia
B) Bacillus, Clostridium, Lactobacillus
1.What is unique about the cell walls of bacteria in the Chlamydiae
phylum?
A) They contain high levels of peptidoglycan
B)
They are resistant to all antibiotics
C) They lack peptidoglycan
D) They are composed of cellulose
C) They lack peptidoglycan
1.Which phylum includes bacteria that perform oxygenic
photosynthesis?
A) Proteobacteria
B) Actinobacteria
C) Cyanobacteria
D) Firmicutes
C) Cyanobacteria
1.Which key genus is part of the Actinobacteria phylum?
A)
Bacillus
B) Escherichia
C) Mycobacterium
D) Anabaena
C) Mycobacterium
1.What is the Gram reaction of Proteobacteria?
A) Positive
B) Negative
C) Variable
D) Neutral
B) Negative
1.Which phylum is known for its highly diverse genera?
A)
Firmicutes
B) Actinobacteria
C) Proteobacteria
D) Cyanobacteria
C) Proteobacteria
1.Which key genus is associated with the Cyanobacteria phylum?
A) Chlamydia
B) Streptococcus
C) Anabaena
D) Spirillum
C) Anabaena
1.What is the dominant metabolic strategy of Cyanobacteria?
A)
Chemoheterotrophy
B) Oxygenic photosynthesis
C)
Fermentation
D) Nitrogen fixation
B) Oxygenic photosynthesis
1.Which genus is common in soil and forms endospores?
A)
Lactobacillus
B) Bacillus
C) Escherichia
D) Anabaena
B) Bacillus
1.Which genus is known for lactic acid production and is important in
food production?
A) Clostridium
B) Lactobacillus
C)
Staphylococcus
D) Streptococcus
B) Lactobacillus
1.Which genus is associated with the human gut and includes both
normal microbiota and some human pathogens?
A) Pseudomonas
B) Escherichia
C) Rhizobium
D) Spirillum
B) Escherichia
1.Which genus is known for its resistant, waxy cell wall and includes
pathogens that cause tuberculosis and leprosy?
A) Streptomyces
B) Mycobacterium
C) Clostridium
D) Chlamydia
B) Mycobacterium
1.Which genus is found in root nodules of plants and is involved in
nitrogen fixation?
A) Spirillum
B) Anabaena
C)
Rhizobium
D) Bacillus
C) Rhizobium
1.Which genus is a common toxic food contaminant and obligate
anaerobe?
A) Staphylococcus
B) Clostridium
C)
Streptococcus
D) Pseudomonas
B) Clostridium
1.Which genus is known for filamentous growth and is a source of many
antibiotics?
A) Mycobacterium
B) Streptomyces
C)
Lactobacillus
D) Salmonella
B) Streptomyces
1.Which genus performs oxygenic photosynthesis and nitrogen fixation?
A) Chlamydia
B) Escherichia
C) Anabaena
D) Staphylococcus
C) Anabaena
1.Which genus lacks peptidoglycan in its cell walls and includes many
human pathogens?
A) Spirillum
B) Bacillus
C) Chlamydia
D) Rhizobium
C) Chlamydia
1.Which genus has flagella on both ends and is found in stagnant
water?
A) Pseudomonas
B) Salmonella
C) Spirillum
D) Clostridium
C) Spirillum