Which one of the following pairs is incorrectly matched?

Glucagon - Beta cells (source)

Somatostatin - Delta cells (source)

Corpus luteum - Relaxin (secretion)

Insulin - Diabetes mellitus (disease)

Answer

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.