Flashcards
Endocrine System
Cards in this deck (8)
- 1Who discovered Insulin?Frederick Grant Banting & John James Rickard. They isolated and injected insulin into an individual suffering from diabetes.
- 2Which endocrine gland makes insulin?The Pancreas which is proximal to the small intestines.
- 3What does the pancreas contain?Alpha cells, that produce glucagon and Beta cells which produce insulin. These cells form clusters known as islets.
- 4What is the role of Insulin?Accelerates glucose uptake and glycogen formation in the liver and muscle cells. Generates ATP.
- 5Explain the course that insulin takesHigh blood glucose concentration is absorbed by the small intestine, signalling the pancreas to release insulin into the blood stream. This stimulates the uptake of glucose from the blood to target tissues and the insulin stimulus stops.
- 6How does glucose move into the cell?Glucose is water soluble and therefore must enter the cell through glucose transporters (GLUT).
- 7Explain the process of glucose transportersVesicles containing GLUT-4, inside the cell, move to fuse with the membrane, opening facilitated channels and allowing glucose to flow in.
- 8What causes diabetes?When the body cannot produce any or enough insulin, causing glucose to accumulate in the blood.