Ketoconazole, fluconazole, clotrimazole, and miconazole are broad-spectrum azoles used to treat ________ infections.
A. protozoan
B. fungal
C. bacterial
D. virus
E. helminthic
Answer: B
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While on a hike in the forest, you notice that some trees have leaves with small brown spots of dead tissue on some leaves. You suspect that the levels of ____ must be high in these cells
a. abscisic acid b. hydrogen peroxide and nitric oxide c. ethylene d. jasmonic acid e. epicatechin
In skeletal muscle, potassium ions are stored in the sarcoplasmic reticulum
Indicate whether the statement is true or false
The primary function of the loop of Henle is
A. removal of glucose. B. removal of water from the nephron. C. secretion of hydrogen ions. D. to produce liquid for the nephron.
Why did the smooth muscle in cultured strips of aorta not respond to acetylcholine by relaxing, while the smooth muscle of aortic rings did?
a) The endothelial layer in aortal strips was abnormally thickened, while in aortal rings it was not. b) Acetylcholine in the strips could not penetrate to the muscle cells while in the rings it could. c) Smooth muscle cells in aortic strips are physically incapable of relaxing under any circumstances. d) The delicate endothelial layer in aortal strips had been rubbed away during dissection, while in aortal rings it remained intact. e) Smooth muscle cells in aortic rings express acetylcholine receptors, while those in strips do not.