<prompt> Stimulus for insulin secretion is-SomatostatinGrowth hormoneDiureticsa-agonist  <response>: Ans. is b i.e., Growth hormone Factors affecting insulin secretion arei Simulating insulin secretion :- Glucose, mannose; amino acids arginine, leucine; Intestinal hormones GIP, gastrin, secretin, CCK, GLP-1; b-keto acids; Parasympathetic stimulation acetylcholine; cAMP; b-adrenergic stimulation; theophylline; sulfonylureas; and certain endocrine hormones like growth hormone, glucagon and glucocorticoids.ii Inhibiting insulin secretion Somatostatin; 2-deoxyglucose; Mannoheptulose; a-adrenergic stimulation, b-adrenergic inhibitors; Galanin; Diazoxide; Thiazide diuretics; K depletion; Phenytoin; Alloxan; Microtubule inhibitors; and insulin itself. 