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Biochemistry Enzymes 36c32315

Aspirin irreversibly inhibits the following enzyme in the formation of eicosanoids:

A
Lipoxygenase
B
Cyclooxygenase
C
Phospholipase-A2
D
Peroxidase
High-Yield Explanation
Ans. B. CyclooxygenaseCyclooxygenase is required for the synthesis of prostaglandins by arachidonic acid. Aspirin, indomethacin, brufen, phenyl butazone and other NSAIDS inhibits COX (Cyclooxygenase). Aspirin inhibits COX of both PGHS-1 and PGHS-2 by acetylation

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