Drug Metabolism · Pharmacology

Which of the following is the most common Phase II conjugation reaction?

  1. Methylation
  2. Glucuronidation
  3. Glycine conjugation
  4. Acetylation
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Correct answer: Glucuronidation

Glucuronidation, catalyzed by UDP-glucuronosyltransferases (UGTs), is the most prevalent Phase II reaction. It involves the transfer of glucuronic acid to the drug, significantly increasing its water solubility.

Difficulty: Medium Question 5 of 20

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