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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Nitric oxide synthase:
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The correct answer is  Ans. D. Requires NADPH FAD, FMN, Heme ironNitric oxide synthase is a very complex cytosolic enzyme which requires five redox co-factors: NADPH, FAD, FMN, Heme and tetrahydrobiopterin (FH4 ). NOS activity depends on increased conc, of Ca2++ ions.