Blood sugar is regulated by two pancreatic hormones insulin and glucagon. When blood sugar rises, insulin is released; it binds to receptors and, through signal transduction, results in an increase in glucose uptake by cells, which effectively lowers blood glucose levels. When blood sugar decreases, glucagon is released, binds to cell receptors, and causes glucose to be released into circulation, thereby increasing blood glucose levels. Diabetes mellitus is a disorder that results from excessively high levels of blood glucose. Type II diabetics have normal to elevated levels of insulin. What, then, might be causing their elevated blood glucose levels? A) inadequate insulin production B) defective receptors C) defective second messenger D) overproduction of glucagon

Type II diabetics have normal to elevated levels of insulin. What, then, might be causing their elevated blood glucose levels? B) defective receptors

Explanation:

Type II dabetics is known as the most common type in adults. In this type, people have normal to elevated levels of insulin. It is related to some other pathologies such as obesity, over weight, stress. Type 2 diabetes is due to defective receptors. There is insuline in muscles, liver and fat tissues. This resistence shows the inhability of cells to respond to normal levels of glucose, elevating blood glucose levels.

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