Penicillin Is an Antibiotic That Kills Bacteria by Binding to the Active

question 54

Multiple Choice

Penicillin is an antibiotic that kills bacteria by binding to the active site of an enzyme involved in synthesis of the bacterial cell wall. Which of the following phenomena best describes the mechanism of action of penicillin?

• A) noncompetitive inhibition
• B) feedback inhibition
• C) allosteric regulation
• D) competitive inhibition

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Definitions:

Metabolic Wastes

Substances produced during the normal operation of the kidneys and excreted through the urine.

Ureters

Muscular tubes that transport urine from the kidneys to the bladder, playing a critical role in the urinary system.

Uric Acid

A chemical created when the body breaks down substances called purines, high levels of which can lead to gout and other health problems.

Waste Products

Materials or substances that are no longer useful or desired and are intended to be discarded.