Paper I — 2025 March (Supplementary (SAY)) (2019 Scheme) — Qviii

Paper I

2025 March (Supplementary (SAY)) (2019 Scheme) · 100 marks · 180 min

Question

Nitric Oxide is synthesized by

1. Neurons
2. Endothelial cells
3. Hepatocytes
4. Monocytes. a) 1, 2 and 3 are correct b) 2, 3 and 4 are correct c) 1, 3 and 4 are correct d) 1, 2 and 4 are correct

• a) 1, 2 and 3 are correct
• b) 2, 3 and 4 are correct
• c) 1, 3 and 4 are correct
• d) 1, 2 and 4 are correct

Qviii1 marksMCQs (Multi)★✓

Answer

For general reference: nitric oxide is synthesized by nitric oxide synthase (NOS) enzymes, with endothelial NOS (eNOS) producing NO in vascular endothelium (vasodilatation), neuronal NOS (nNOS) in neurons, and inducible NOS (iNOS) in activated macrophages and other cells during inflammation (microbicidal/cytotoxic function).

Related Concepts

1. 1Chemical Mediators of Inflammation

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