Biochemistry Enzyme deficiency in Acute intermittent porphyria is A ALA synthase B Uroporphyrinogen I- synthase C Uroporphyrinogen III synthase D Uroporphyrinogen decarboxylase 💡 Explanation Enzyme deficiency in Acute intermittent porphyria is ✓ Correct Answer: B. Uroporphyrinogen I- synthase