Question

Name the cells of the pancreas that produce glucagon.
A. Alpha cells
B. Beta cells
C. Delta cells
D. None of the above

Answer 1

Glucagon is secreted to maintain glucose levels in the bloodstream and to increase very low glucose levels. It works to raise the concentration of glucose and fatty acids in the bloodstream, and is considered to be the main catabolic hormone of the body.

Complete answer:
Glucagon is a hormone that is associated with controlling (glucose) levels. It is delivered by the alpha cells, found in the islets of Langerhans, in the pancreas, from where it is delivered into the circulation system. The glucagon-discharging alpha cells encompass the insulin-releasing beta cells, which mirrors the cozy connection between the two hormones.

Glucagon's function in the body is to forestall blood glucose levels dropping excessively low. To do this, it follows up on the liver in a few different ways:
- It stimulates the transformation of stored glycogen (put away in the liver) to glucose, which can be delivered into the circulatory system. This cycle is called glycogenolysis.
- It advances the creation of glucose from amino acids. This cycle is called gluconeogenesis.
- It decreases glucose utilization by the liver so that however much glucose as could reasonably be expected can be secreted into the circulatory system to keep up blood glucose levels.
- Glucagon additionally follows up on fat tissue to invigorate the breakdown of fat stores into the circulation system.

Glucagon works alongside the hormone insulin to control glucose levels and keep them inside set levels. Glucagon is delivered to stop glucose levels dropping excessively low (hypoglycaemia), while insulin is delivered to stop glucose levels ascending excessively high (hyperglycaemia).

The arrival of glucagon is invigorated by low blood glucose, protein-rich suppers and adrenaline (another significant hormone for fighting low glucose). The arrival of glucagon is forestalled by raised blood glucose and starch in food, distinguished by cells in the pancreas.

Hence, the correct answer is option (A).

Note: Pancreas is an endocrine organ. It secretes two kinds of hormones, specifically insulin and glucagon. Insulin is emitted by the beta cells of the islets of Langerhans of pancreas. Glucagon is discharged by the alpha cells of the islets of Langerhans of pancreas. Insulin diminishes the blood glucose level when there is a high measure of sugar present in the blood. Glucagon discharges glucose from the liver in the blood when there is low degrees of sugar present in the blood.