Which statement correctly describes the action of insulin after a carbohydrate-rich meal?

Answer and explanation

Correct answer: D. It is released by pancreatic beta cells and promotes uptake of glucose into muscle and fat cells

  1. Step 1: Raised blood glucose is detected by beta cells in the islets. Step 2. Insulin lowers glucose by increasing cellular uptake and storage. Answer: release from beta cells to lower blood glucose. Why not the others: alpha cells make glucagon, the adrenal cortex releases cortisol, and the liver does not make insulin.

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