Question
Which one of the following pairs is incorrectly matched?
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Glucagon - Beta cells (source)
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Somatostatin - Delta cells (source)
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Corpus luteum - Relaxin (secretion)
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Insulin - Diabetes mellitus (disease)
Solution
A.
Glucagon - Beta cells (source)
In pancreatic islets, alpha or A -cells constitute about 15% of pancreatic islets cells and secrete glucagon. Its molecule consists of a single polypeptide chain of 29 amino acid residues. Glucagon intensifies glycogenolysis, deamination and gluconeogenesis, and inhibits glycogenesis in liver cells. It also intensifies lipolysis in adipose tissue. Thus, it is a promoter of catabolic metabolism.
