Bio 230 quiz yourself UNIT 1 Questions and Answers with Verified
Solutions | Latest 2026 Update
Q: destruction? A. The lysosome fuses with the cell membrane, dumping the killing
chemicals. B. The lysosome containing the bacterium fuses with the phagosome
containing the killing chemicals. C. The phagosome containing the bacterium
fuses with the lysosome containing the killing chemicals. #4
Answer:
C, The phagosome containing the
bacterium fuses with the lysosome
containing the killing chemicals.
Q: Groups of bacteria attached to a surface and enclosed in a common secreted
adhesive matrix, typically polysaccharide in nature best describes: A. an
endospore. B. a colony. C. a biofilm. D. a glycocalyx. #5
Answer:
C, biofilm.
,Bio 230 quiz yourself UNIT 1 Questions and Answers with Verified
Solutions | Latest 2026 Update
Q: Describe the basic structure of a bacterial flagellum and state its function.
Answer:
The bacterial
flagellum consists of a filament that extends from the cell surface, a basal body that
anchors the
filament to the bacterium anf functions as a molecular motor, and a flexible hook that
couples
the filament to the basal body.
Q: Define taxis.
Answer:
A motile response to an environmental stimulus.
Q: surrounded by flagella
Answer:
peritrichous
,Bio 230 quiz yourself UNIT 1 Questions and Answers with Verified
Solutions | Latest 2026 Update
Q: a single flagellum at both ends
Answer:
amphitrichous
Q: periplasmic flagella found only in spirochetes
Answer:
axial filaments
Q: State how bacterial flagella may play a role in the initiation of innate immune
defenses.
Answer:
The
flagellin of bacterial flagella is a PAMP that binds to PRRs on defense cells to
initiate innate
immunity.
, Bio 230 quiz yourself UNIT 1 Questions and Answers with Verified
Solutions | Latest 2026 Update
Q: Briefly describe how bacterial flagella and chemotaxis may play a role in the
pathogenocity of
Answer:
some bacteria. Motility and chemotaxis may enable some bacteria to swim through
mucus
in order to make contact with host cells. It also allows some spirochetes to enter and
exit blood
vessels in order to disseminate in the body.
Q: The overall function of bacterial flagella is: A. to keep bacteria in an optimum
environment via taxis. B. to enable bacteria to escape body defenses. C. to
adhere to host cells and resist flushing. #1
Answer:
A, to keep bacteria in an
optimum environment via
taxis.
Solutions | Latest 2026 Update
Q: destruction? A. The lysosome fuses with the cell membrane, dumping the killing
chemicals. B. The lysosome containing the bacterium fuses with the phagosome
containing the killing chemicals. C. The phagosome containing the bacterium
fuses with the lysosome containing the killing chemicals. #4
Answer:
C, The phagosome containing the
bacterium fuses with the lysosome
containing the killing chemicals.
Q: Groups of bacteria attached to a surface and enclosed in a common secreted
adhesive matrix, typically polysaccharide in nature best describes: A. an
endospore. B. a colony. C. a biofilm. D. a glycocalyx. #5
Answer:
C, biofilm.
,Bio 230 quiz yourself UNIT 1 Questions and Answers with Verified
Solutions | Latest 2026 Update
Q: Describe the basic structure of a bacterial flagellum and state its function.
Answer:
The bacterial
flagellum consists of a filament that extends from the cell surface, a basal body that
anchors the
filament to the bacterium anf functions as a molecular motor, and a flexible hook that
couples
the filament to the basal body.
Q: Define taxis.
Answer:
A motile response to an environmental stimulus.
Q: surrounded by flagella
Answer:
peritrichous
,Bio 230 quiz yourself UNIT 1 Questions and Answers with Verified
Solutions | Latest 2026 Update
Q: a single flagellum at both ends
Answer:
amphitrichous
Q: periplasmic flagella found only in spirochetes
Answer:
axial filaments
Q: State how bacterial flagella may play a role in the initiation of innate immune
defenses.
Answer:
The
flagellin of bacterial flagella is a PAMP that binds to PRRs on defense cells to
initiate innate
immunity.
, Bio 230 quiz yourself UNIT 1 Questions and Answers with Verified
Solutions | Latest 2026 Update
Q: Briefly describe how bacterial flagella and chemotaxis may play a role in the
pathogenocity of
Answer:
some bacteria. Motility and chemotaxis may enable some bacteria to swim through
mucus
in order to make contact with host cells. It also allows some spirochetes to enter and
exit blood
vessels in order to disseminate in the body.
Q: The overall function of bacterial flagella is: A. to keep bacteria in an optimum
environment via taxis. B. to enable bacteria to escape body defenses. C. to
adhere to host cells and resist flushing. #1
Answer:
A, to keep bacteria in an
optimum environment via
taxis.
