Amoxicillin is very effective for treating infections with Gram-positive bacteria but rarely causes side effects in humans. This is an example of
A) selective toxicity.
B) narrow spectrum of action.
C) a broad-spectrum antimicrobial.
D) antibiotic resistance.
E) altruism.
A
Bloom's Taxonomy: Comprehension
Section: Mechanisms of Antimicrobial Action
Learning Outcome: 10.3
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The study of dentition tells the researcher what about an animal?
a. its diet only b. its lifestyle only c. its intelligence only d. its diet and lifestyle e. its diet, lifestyle, and intelligence
What is the outcome of the process illustrated in the accompanying figure.?
a. One male and one female cell b. Four new but genetically distinct cells c. Two new but genetically distinct cells d. Two new genetically identical cells that differ genetically from what they were before e. Four new genetically identical cells that differ genetically from what they were before
The member of the Enterobacteriaceae that has enteroinvasive, enterotoxigenic, enteropathogenic, and enterohemorrhagic strains is
What will be an ideal response?
A stomach cell is producing pepsin, an enzyme that hydrolyzes proteins. Which of the following events suggests that gene expression of pepsin has been turned off in the cell?
A) The pepsin protein is folded properly in the cytoplasm. B) The chromosome with the pepsin gene is tightly coiled. C) The pepsin mRNA leaves the nucleus and enters the cytoplasm. D) Activators and RNA polymerases are abundant in the nucleus.