Science
(a) Write the role of insulin in regulating blood sugar levels in human body. Mention the disease caused due to it.
(b) How is the timing and the amount of release of insulin in the blood regulated ?
Endocrine System
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Answer
(a) The role of insulin in regulating blood sugar levels in human body are:
- It promotes glucose utilisation by the body cells, thereby reducing the blood sugar level.
- It stimulates deposition of extra glucose of the blood as glycogen in liver and muscles.
(b) The timing and amount of release of insulin is regulated by the feedback mechanism. Insulin is released by beta-cells of pancreas when there is increase of sugar level in blood. The amount of insulin is also decided by the amount of sugar in the blood. When the level of sugar in the blood decreases the negative feedback will allow the pancreas to stop the secretion of insulin.
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