Which one of the following pairs is incorrectly matched? [2010]a)Gluca...
Glucagon is secreted by a-cells of the islets of Langerhans in the pancreas. It increases the concentration of glucose in the blood by stimulating the breakdown of glycogen.
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Which one of the following pairs is incorrectly matched? [2010]a)Gluca...
It can also be c) because Relaxin is secreted by ovary not corpus luteum. Corpus luteum secrete progesterone.
Which one of the following pairs is incorrectly matched? [2010]a)Gluca...
Incorrectly Matched Pair: Glucagon - Beta cells (source)
Explanation:
- Glucagon and insulin are both hormones that regulate blood glucose levels in the body.
- Glucagon is produced by the Alpha cells of the pancreas, not the Beta cells as mentioned in option A.
- Beta cells are responsible for producing and secreting insulin, which helps lower blood glucose levels.
- Glucagon, on the other hand, works opposite to insulin by increasing blood glucose levels.
- When blood glucose levels are low, such as during fasting or exercise, the Alpha cells of the pancreas release glucagon.
- Glucagon stimulates the liver to convert stored glycogen into glucose, which is then released into the bloodstream.
- This process called glycogenolysis helps increase blood glucose levels to ensure a steady supply of energy to the body.
- Therefore, the correct match for glucagon should be Alpha cells, not Beta cells.
- The other pairs mentioned in the options are correctly matched:
- Somatostatin is produced by Delta cells of the pancreas and helps regulate the release of glucagon and insulin.
- Corpus luteum is responsible for producing relaxin hormone, which helps prepare the body for pregnancy.
- Insulin is indeed associated with diabetes mellitus, as diabetes is a condition characterized by the inability of the body to produce or use insulin properly.
Conclusion:
- The incorrectly matched pair is option A: Glucagon - Beta cells (source).
- Glucagon is produced by the Alpha cells of the pancreas, not the Beta cells.