Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilisation.
A
Gastrin
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B
Insulin
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C
Glucagon
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D
Secretin
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Solution
The correct option is D Insulin
Insulin is a peptide hormone secreted from beta cells of islets of Langerhans of pancreas. It acts on hepatocytes and adipocytes and increases uptake of cellular glucose and its utilisation. This causes rapid movement of glucose to hepatocytes and adipocytes from blood, thereby resulting in decreased levels of glucose in blood. It also stimulates glycogenesis i.e. conversion of glucose to glycogen in target cells.