what is the complex molecule of insulin ? when it is broken down the simple molecule is glycogen so is it glucose?
What do you mean by "complex molecule of insulin"?
Like what does it begin with before it breaks down in the digestive system.
I'm sorry but I don't quite follow. I'm not sure what you mean by "it" or what exactly is being broken down. In your next response, can you please post the question clearly using complete sentences? Thanks.
Okay, so what (complex) molecule is broken down in insulin, when it forms into glycogen. This occurs in the digestive system. What begins the process of creating glycogen from insulin?
You are confused. Insulin is a peptide hormone that is made from B-cells in the islets of langherhan of the pancreas. The DNA of the cells transcribe DNA into mRNA and the mRNA is spliced into exons and introns, with the exons being joined together and being sent out the nucleus to be translated into protein, called pre-pro-insulin. Pre-pro-insulin is cleaved into proinsulin before being modified again into insulin, it's final form; insulin does not break from another complex molecular structure. Like all peptides, they are packaged into secretory vesicles before they are released by the pancreas. Glucagon, is also a peptide hormone that is made from alpha-cells in the islets of langherhan of the pancreas. Glucagon also undergoes the same modification as insulin, but goes from pre-pro-glucagon to glucagon. Glucagon breaks down glycogen to glucose, and it does not create insulin or via versa. When glucose concentrations are high, negative feedback prevents the release of glucagon and stimulates the release of insulin; when glucose levels are low, negative feedback prevents the release of insulin and stimulates the release of glucagon.
Hope this helps