In: Biology
1. True statement about insulin resistance is c. Environmental factors combined with a genetic predisposition to insulin resistance is, in part, driving the global health crisis of type II diabetes. Shifts or changes in environmental factors triggering susceptible genes in genetically predisposed populations leading to global epidemic.
In insulin resistance, fat cells are unable to respond to insulin well and unable to take up glucose from the blood. Insulin resistance may develop into type II diabetes, but not same. Insulin levels are high and blood glucose levels are normal in someone with insulin resistance.
2. Diabetes is so dangerous to the body because b. Chronically high blood sugar damages blood vessels and impairs blood circulation to tissues. Excess blood sugar causes a decrease in elasticity of blood vessels thus makes them narrow.
Glucagon release does not affect brain function. Blood vessels will reduce in size in the presence of chronically high levels of blood glucose, but number of blood vessels remains unchanged.