Q145 / 180 · NEET 2013 (Karnataka) · Zoology

Which of the following represents the action of insulin?

  • A
    Increases blood glucose level by stimulating glucagon production.
  • Correct answer
    B
    Decreases blood glucose levels by forming glycogen.
  • C
    Increases blood glucose levels by promoting cellular uptake of glucose.
  • D
    Increases blood glucose levels by hydrolysis of glycogen.

Solution

Insulin is released by the ' $\beta$ cells' in the islets of Langerhans in response to food. Its role is to lower glucose levels in the bloodstream and promote the storage of glucose in fat, muscle, liver and other body tissues. ' $\alpha$ cells' in the islets of Langerhans produce another important hormone, glucagon, which increase blood sugar levels. Related Theory Type I diabeles is an autoimmune reaction that attacks cells in pancreas that produce insulin and is caused by inherited genetics or environmental elements. Type 2 diabetes happens when body becomes resistant to insulin and is associated with genetics and lifestyle choice.

Hence, the correct answer is option: 'B'.

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