Insulin Regulation By Deborah Taylor Insulin A hormone

Insulin Regulation By Deborah Taylor

Insulin �A hormone � Produced in the pancreas by the beta cells of the Islets of Langerhans � Released when sugars are in the stomach � It’s action is to allow glucose to enter the cells via the Glut 4 receptor.

Action of Insulin � This is a you tube file that explains the mechanism very well � http: //youtu. be/jy 4 F-140 up. I � View this short animation before watching the Insulin Shock Video

Diabetes mellitus �A disorder due to insulin imbalance � Type I – Insulin Dependent Diabetes – more serious – usually due to an autoimmune problem in the pancreas – used to be called Juvenile Diabetes – requires insulin injections � Type II – Non-insulin Dependent Diabetes – often due to insensitivity of tissues to insulin, can often be controlled with diet and exercise

Overview of the Insulin Shock Lab � One fish will be the control. � The other fish will be exposed to insulin. � Both fish will be observed for behaviors and their activity will be recorded on the worksheet provided. � The insulin fish will be moved to glucose when it starts swimming on its side.

Lab set up

Questions to be able to answer � What did the fish that received insulin do in the first minute or so? � What did the insulin fish do after several minutes? � At what time was the insulin fish moved to the glucose solution? � What did the insulin do to the glucose? � Why did the fish behave as it did, when in insulin a minute or so and then later?

View the Insulin Shock Lab � The video is in the lab folder and called Insulin Shock Lab � Record the activities of both fish during the entire lab video using the report sheet in your lab folder. � Turn in the report sheet in electronic format in the drop box for the “Insulin Lab”