Question

The function of glucagon hormone is
A. To increase glycogenesis
B. To decrease blood sugar level
C. To release glucose from liver cells and glycogenolysis promotion.
D. To increase the absorption of glucose and fatty acids through the cell.

Answer 1

The hormone that helps in regulating the level of glucose in the blood is known as glucagon. This hormone is generated by the endocrine pancreatic cells i.e. alpha cells, present in the pancreas as Islets of Langerhans, from where it is discharged into the bloodstream. It is a peptide hormone.

Complete answer:
Glucagon hormone plays an important role in the human body by preventing the level of blood glucose from falling too low. Proteins are responsible for acquiring and transmitting signals from cell to cell in the body. The process that stimulates the production of glucose from amino acid molecules is known as gluconeogenesis. Glucagon promotes the transformation of stored glycogen in the liver into glucose and is further discharged into the bloodstream and promotes the process of glycogenolysis. Its impact is contrary to that of the insulin hormone. It decreases the consumption of glucose by the liver so that as much glucose as possible can be released into the bloodstream to regulate glucose levels in the blood. It facilitates the breakdown of stored fat in the bloodstream by working on adipose tissues.
So, the correct answer is “Option C”.

Note:
Pancreatic cells are known as a mixed gland because it is both endocrine (because it releases glucagon or insulin) and exocrine (because it releases pancreatic juice and digestive enzymes) in nature. Alpha cells that secrete glucagon are encompassed by the beta cells secreting insulin, this shows the close connection between these hormones.