Homeostatic maintenance of optimal blood glucose levels has been intensively stu

Question

Homeostatic maintenance of optimal blood glucose levels has been intensively studied in vertebrate organisms.

(a) Pancreatic hormones regulate blood glucose levels. Identify TWO pancreatic hormones and describe the effect of each hormone on blood glucose levels.

(b) For ONE of the hormones you identified in (a), identify ONE target cell and discuss the mechanism by which the hormone can alter activity in that target cell. Include in your discussion a description of reception, cellular transduction, and response.

(c) Compare the cell-signaling mechanisms of steroid hormones and protein hormones.

Explanation / Answer

a) Pancreatic hormones that regulate blood glucose level are:

2. Glucagon-Increases blood glucose level by

Glucagon is secreted by alpha cells of pancreatic islets. It maintain normal blood glucose level by working in the opposite way of insulin. If blood glucose is High, then No glucagon is secreted. when blood glucose goes Low ( such as during exercise or between meals), more and more Glucagon is secreted.

b) Glucagon

c) Comparison between Steroid hormones and Protein hormones:

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