BIO 208 Exam Questions With Complete Solutions
A characteristic symptom of plague is
-small red spots on the skin.
-swollen lymph nodes.
-rose-colored spots.
-recurrent fever.
-nausea and vomiting. Correct Answers swollen lymph nodes
A human cell has been infected with a virus. What cytokine
message would the cell release to communicate the infection to
neighboring cells and recruit immune cells to fight the infection?
-The infected cell would release an autocrine cytokine to
activate neighboring cells to fight the infection.
-The cytokine message would tell neighboring cells to increase
transcription and translation.
-The cytokine message would initiate apoptosis in neighboring
cells infected with the virus.
-Infected neighboring cells would be stimulated to replicate and
divide.
-The cytokine message would tell neighboring cells to increase
transcription and translation AND The cytokine message would
initiate apoptosis in neighboring cells infected with the virus.
Correct Answers The cytokine message would initiate apoptosis
in neighboring cells infected with the virus.
A major difference between anaerobic respiration and aerobic
respiration is that...
-anaerobic respiration uses an inorganic molecule as a final
electron acceptor while aerobic respiration uses oxygen.
,-anaerobic respiration requires water while aerobic respiration
does not.
-only human cells are capable or aerobic respiration.
-aerobic respiration uses an electron transport chain while
anaerobic respiration does not.
-anaerobic respiration produces more ATP molecules than
aerobic respiration. Correct Answers anaerobic respiration uses
an inorganic molecule as a final electron acceptor while aerobic
respiration uses oxygen.
A particular genotype always produces the same phenotype.
TRUE
FALSE Correct Answers false
Active immunity lasts longer than passive immunity.
A) True
B) False Correct Answers true
After the first exposure to a protein antigen, antibodies will be
immediately detectable in an individual's serum.
A) True
B) False Correct Answers false
All _____ have a beta-lactam ring.
penicillins
tetracyclines
macrolides
sulfanolamides
aminoglycosides Correct Answers penicillins
, An ideal antimicrobial therapeutic drug exhibits all of the
following characteristics, except
-they are nontoxic to host.
-they are easily broken down by host.
-they are easily administered.
-they have limited capacity to elicit resistance.
-they are nonallergenic. Correct Answers they are easily broken
down by host
Capsule and fimbrae are extracellular structures that can help
bacteria
-move by taxis toward chemical signals.
-exchange plasmid DNA through horizontal gene transfer.
-survive harsh conditions like dehydration, high temperatures,
and lack of nutrients.
-prevent phagocytosis.
-adhere to surfaces and form biofilms. Correct Answers adhere
to surfaces and form biofilms.
Case study: 3 year old Leili was brought to the pediatrician by
her mother for a rash at the corner of her mouth that is sore and
covered by a honey-colored crust. The pediatrician suspects
impetigo, which can be caused by two microbes, Staphyloccocus
aureus and Streptococcus pyogenes. Which diagnostic tests can
Leili's pediatrician use to distinguish the two possible causative
agents of impetigo?
A) Visual inspection of the sores.
B) Catalase test results.
C) Sensitivity/resistance to bacitracin.
D) Visual inspection of the sores AND Catalase test results.
A characteristic symptom of plague is
-small red spots on the skin.
-swollen lymph nodes.
-rose-colored spots.
-recurrent fever.
-nausea and vomiting. Correct Answers swollen lymph nodes
A human cell has been infected with a virus. What cytokine
message would the cell release to communicate the infection to
neighboring cells and recruit immune cells to fight the infection?
-The infected cell would release an autocrine cytokine to
activate neighboring cells to fight the infection.
-The cytokine message would tell neighboring cells to increase
transcription and translation.
-The cytokine message would initiate apoptosis in neighboring
cells infected with the virus.
-Infected neighboring cells would be stimulated to replicate and
divide.
-The cytokine message would tell neighboring cells to increase
transcription and translation AND The cytokine message would
initiate apoptosis in neighboring cells infected with the virus.
Correct Answers The cytokine message would initiate apoptosis
in neighboring cells infected with the virus.
A major difference between anaerobic respiration and aerobic
respiration is that...
-anaerobic respiration uses an inorganic molecule as a final
electron acceptor while aerobic respiration uses oxygen.
,-anaerobic respiration requires water while aerobic respiration
does not.
-only human cells are capable or aerobic respiration.
-aerobic respiration uses an electron transport chain while
anaerobic respiration does not.
-anaerobic respiration produces more ATP molecules than
aerobic respiration. Correct Answers anaerobic respiration uses
an inorganic molecule as a final electron acceptor while aerobic
respiration uses oxygen.
A particular genotype always produces the same phenotype.
TRUE
FALSE Correct Answers false
Active immunity lasts longer than passive immunity.
A) True
B) False Correct Answers true
After the first exposure to a protein antigen, antibodies will be
immediately detectable in an individual's serum.
A) True
B) False Correct Answers false
All _____ have a beta-lactam ring.
penicillins
tetracyclines
macrolides
sulfanolamides
aminoglycosides Correct Answers penicillins
, An ideal antimicrobial therapeutic drug exhibits all of the
following characteristics, except
-they are nontoxic to host.
-they are easily broken down by host.
-they are easily administered.
-they have limited capacity to elicit resistance.
-they are nonallergenic. Correct Answers they are easily broken
down by host
Capsule and fimbrae are extracellular structures that can help
bacteria
-move by taxis toward chemical signals.
-exchange plasmid DNA through horizontal gene transfer.
-survive harsh conditions like dehydration, high temperatures,
and lack of nutrients.
-prevent phagocytosis.
-adhere to surfaces and form biofilms. Correct Answers adhere
to surfaces and form biofilms.
Case study: 3 year old Leili was brought to the pediatrician by
her mother for a rash at the corner of her mouth that is sore and
covered by a honey-colored crust. The pediatrician suspects
impetigo, which can be caused by two microbes, Staphyloccocus
aureus and Streptococcus pyogenes. Which diagnostic tests can
Leili's pediatrician use to distinguish the two possible causative
agents of impetigo?
A) Visual inspection of the sores.
B) Catalase test results.
C) Sensitivity/resistance to bacitracin.
D) Visual inspection of the sores AND Catalase test results.
