5 Questions
Where is insulin formed in its proinsulin form?
Ribosome
Which enzyme metabolizes insulin in the liver?
Insulin glutathione tran-hydroxylase
What percentage of cells in the Islands of Langerhans produce glucagon?
25%
What stimulates insulin secretion the most?
$Glucose$
What action does insulin have on protein metabolism?
Increases protein synthesis
Study Notes
Insulin Formation and Secretion
- Insulin is formed in its proinsulin form in the beta cells of the Islets of Langerhans.
Insulin Metabolism
- The enzyme responsible for metabolizing insulin in the liver is insulinase.
Glucagon Production
- Approximately 20-30% of cells in the Islets of Langerhans produce glucagon.
Insulin Secretion Stimulation
- Insulin secretion is stimulated the most by elevated blood glucose levels.
Insulin's Action on Protein Metabolism
- Insulin promotes protein synthesis and inhibits protein breakdown.
Test your knowledge about the pancreas and the production, storage, and release of insulin. Learn about the different types of cells in the pancreas and their functions.
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