Insulin is secreted by which cells?

Answer and explanation

Correct answer: C. Beta cells of the islets of Langerhans

  1. Step 1: The endocrine portion of the human pancreas consists of scattered clusters called the Islets of Langerhans.
  2. Step 2: Beta () cells make up roughly of each islet and synthesize and secrete the peptide hormone insulin to lower blood glucose levels.
Answer
Beta cells of the islets of Langerhans.
Why not the others: 'Alpha cells of the islets of Langerhans' secrete glucagon to raise blood glucose concentrations; 'Chief cells of the stomach' secrete the inactive zymogen pepsinogen; 'Kupffer cells of the liver' are specialized resident macrophages that phagocytose pathogens and senescent erythrocytes.

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