Answer to Question 1
A
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First-generation cephalosporins are largely effective against gram-positive bacteria and include cefadroxil (generic), cefazolin (Zolicef), and cephalexin (Keflex). Second-and third-generation cephalosporins are less effective against gram-positive bacteria. Cefoxitin (generic) is a second-generation cephalosporin and cefotaxime (Claforan) and cefazolin (Zolicef) are third-generation cephalosporins.
Answer to Question 2
C
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The cholinergic system uses acetylcholine as its neurotransmitter. A calcium ion is an electrolyte circulating in the serum. Acetylcholinesteras e is an enzyme that breaks down acetylcholine. Monoamine oxidase is an enzyme that breaks down the neurotransmitter norepinephrine.