Insulin+and+Diabetes+DB



(1) Describe insulin secretion from the pancreas. Where is it produced? When is it secreted? Insulin is produced and secreted from the pancreatic islets, or the endocrine tissure of the pancreas. It is secreted when the blood glucose level is high, which is after eating. In is secreted directly into the blood.

(2) What is the role of insulin? Insulin stimulates the uptake of glucose in cells which supplies energy for muscle contraction and gives glycerol for the formation of fat.

(3) What is diabetes mellitus? Diabetes mellitus is a hormonal disease in which liver cells cannot take up glucose well. Cellular famine is the result.

(4) How does a glucose tolerance test assist in the diagnosis of diabetes? A glucose tolerence test asesses how a person's body accepts glucose. A person is given 100 mg. of glucose and the blood glucose level of the person is then measured at different time. If the person's blood glucose level rises and remains elevated for hous, the person is a diabetic.

(5) What causes diabetes type 1? Diabetes type 1 is caused by the presence of certain genes and can result after a viral infection when the body's immune system keeps killing cells.

(6) How is diabetes type 1 controlled? It is controlled by taking insulin injections daily to regulate blood sugar level.

(7) What causes diabetes type 2? Type 2 diabetes is caused by excessive food intake and lack of physical activity.

(8) How is diabetes type 2 controlled? It is controlled by maintaining a low-fat, low-suagr diet and excercising regularly.

(9) What are the symptoms of diabetes? Symptoms of diabetes my include, excessive perspiration, pale skin, shallow breathing and anxiety. It also causes vision problems, frequent urination, tiredness, and extreme hunger.