Which of these statements concerning insulin is true?
A) It is secreted by alpha cells in the pancreas.
B) It is secreted by beta cells in the islets of Langerhans.
C) It stimulates the breakdown of muscles.
D) It is a hormone that works synergistically with glucagon.

Question

Quizplus · Accepted Answer

Insulin is secreted by beta cells in the islets of Langerhans in the pancreas. It stimulates the uptake and storage of glucose, amino acids, and fatty acids, and helps regulate blood sugar levels. It works in opposition to glucagon, which stimulates the breakdown of glycogen stores to release glucose into the bloodstream. Insulin also has anabolic effects, promoting protein synthesis and muscle growth, rather than breakdown.

Which of These Statements Concerning Insulin Is True