14.4 When aspirin was first commercially available its was …..

14.4 When aspirin was first commercially available its was …..

A sold over the counter

B only available in liquid form

C available only in clinics and hospitals

D available for home use with a prescription.

14.5 Early penicillin clinical trials were hampered by an inadequate supply of the drug. A good source for a mold strain that produced a lot of the compound was found in a ___.

A moldy piece of bread

B mold found in a week-old cup of coffee

C moldy cantaloupe at a market

D a black mold found on the wall in a damp room

14.6 Penicillin resistant strains of bacteria developed the enzyme __ to inactivate the drug.

A β-hydrolase

B β-lactamase

C trypsin

D elastase

E transpeptidase

 
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