Where in the human body is insulin produced?
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Kidney
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Liver
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Islets of Langerhans
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Bone Marrow
C
Correct answer
Explanation
Insulin is produced by the beta cells of the Islets of Langerhans, which are clusters of endocrine cells located within the pancreas. These cells regulate blood sugar levels by secreting insulin. Insulin is not produced in the kidney, liver, or bone marrow.