Cyclic GMP act on: (A) Thyroxine, (B) Insulin, (C) Growth hormone, (D) Atrial natriuretic peptide
Answer is D. Cyclic GMP is the secondary messager for ANP, nitric oxide Secondary messager is required for peptide hormones Ref:Guyton and Hall textbook of medical physiology 12th edition ,pag number:540,541,542