UF MCB 3020 Exam 3 UPDATED
ACTUAL Questions and CORRECT
Answers
Substances that are recognized as foreign and provoke immune responses are called _________.
- CORRECT ANSWER - antigens.
During phagocytosis, the phagolysosome forms before the phagosome forms. - CORRECT
ANSWER - False
The science dealing with classification is called ______. - CORRECT ANSWER -
taxonomy
Microbiota of the skin are most likely to be found - CORRECT ANSWER - in association
with oil and sweat glands.
Microorganisms do not generally reproduce sexually; therefore, species are usually defined by
phenotypic and genotypic similarities. - CORRECT ANSWER - True
The reason coral reefs are among the most productive and successful ecosystems is due to -
CORRECT ANSWER - the coral-dinoflagellate mutualistic relationship.
Which of the following is used to help protect the lungs from infection?
All of the choices are correct.
Turbulent airflow deposits airborne pathogens on sticky mucosal surfaces.
Coughing and sneezing forcefully expel organisms away from the lungs.
The mucociliary escalator moves trapped organisms away from the lungs by ciliary action. -
CORRECT ANSWER - All of the choices are correct.
, A classification system based on evolutionary relationships is called a __________ system. -
CORRECT ANSWER - phylogenetic
The lungs are protected from microorganisms by
All of the choices are correct.
phagocytic action of alveolar macrophages.
the mucociliary blanket.
lysozyme in mucus. - CORRECT ANSWER - All of the choices are correct.
A researcher proposes that the relationship between a particular bacterial species that produces a
fat-soluble vitamin is mutualistic with its insect host. Which of the following procedures would
best test the researcher's hypothesis? - CORRECT ANSWER - Determine which antibiotic
kills the bacteria without harming the host, then administer this antibiotic to the insect and
compare its growth with and without the vitamin
Bacteria within biofilms exchange
plasmids.
quorum-sensing molecules.
nutrients.
All of the choices are correct. - CORRECT ANSWER - All of the choices are correct.
A unidirectional process where a specific compound released by one organism has a negative
effect on another organism is called - CORRECT ANSWER - amensalism.
Which of the following is considered to be a biological defense mechanism? - CORRECT
ANSWER - Normal microbiota
ACTUAL Questions and CORRECT
Answers
Substances that are recognized as foreign and provoke immune responses are called _________.
- CORRECT ANSWER - antigens.
During phagocytosis, the phagolysosome forms before the phagosome forms. - CORRECT
ANSWER - False
The science dealing with classification is called ______. - CORRECT ANSWER -
taxonomy
Microbiota of the skin are most likely to be found - CORRECT ANSWER - in association
with oil and sweat glands.
Microorganisms do not generally reproduce sexually; therefore, species are usually defined by
phenotypic and genotypic similarities. - CORRECT ANSWER - True
The reason coral reefs are among the most productive and successful ecosystems is due to -
CORRECT ANSWER - the coral-dinoflagellate mutualistic relationship.
Which of the following is used to help protect the lungs from infection?
All of the choices are correct.
Turbulent airflow deposits airborne pathogens on sticky mucosal surfaces.
Coughing and sneezing forcefully expel organisms away from the lungs.
The mucociliary escalator moves trapped organisms away from the lungs by ciliary action. -
CORRECT ANSWER - All of the choices are correct.
, A classification system based on evolutionary relationships is called a __________ system. -
CORRECT ANSWER - phylogenetic
The lungs are protected from microorganisms by
All of the choices are correct.
phagocytic action of alveolar macrophages.
the mucociliary blanket.
lysozyme in mucus. - CORRECT ANSWER - All of the choices are correct.
A researcher proposes that the relationship between a particular bacterial species that produces a
fat-soluble vitamin is mutualistic with its insect host. Which of the following procedures would
best test the researcher's hypothesis? - CORRECT ANSWER - Determine which antibiotic
kills the bacteria without harming the host, then administer this antibiotic to the insect and
compare its growth with and without the vitamin
Bacteria within biofilms exchange
plasmids.
quorum-sensing molecules.
nutrients.
All of the choices are correct. - CORRECT ANSWER - All of the choices are correct.
A unidirectional process where a specific compound released by one organism has a negative
effect on another organism is called - CORRECT ANSWER - amensalism.
Which of the following is considered to be a biological defense mechanism? - CORRECT
ANSWER - Normal microbiota
