NSC 101 Lecture Notes - Lecture 3: Insulin Receptor, Blood Sugar, Glucagon
8 Jun 2016
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Document Summary
How does the body respond to lots of glucose being absorbed into the bloodstream: pancreas detects high glucose and releases insulin, where cells that have an insulin receptor sense this and remove the glucose from the blood. How does the body respond to the drop in blood glucose hours after a meal: glucagon is released from the liver. When there is inadequate glucose available for cells such as red blood cells, how do these cells get energy: breaks down fat and since it cannot be completely metabolized by glucose, ketones are produced. Energy from amino acids in proteins can form glucose. Type 2- cells not reacting to insulin produced. Can diabetes be prevented: dramatic increase over last 20 years, reducing risk of type 2 diabetes. Staying within or a little lower in kcals than expending. High-fiber diet: increases volume of food eaten, stomach fullness, lower energy content.
