If your blood glucose level for this screening is higher than 200 mg/dL, most practitioners will consider you diabetic and you won't be required to take the glucose tolerance test. But any score between 140 and 200 means that you'll have to take the three-hour glucose tolerance test for a definite diagnosis.
The purpose of homeostasis is to maintain a normal balance within the body regarding its temperature, salt concentration, water concentration, and food intake. The human body functions normally with a narrow range of variation for each of these factors.
HOMEOSTASIS is defined as all the processes that help maintain an organism internal environment. The digestive system breaks down food into a form that the cells can use to maintain homeostasis. (Just like in the diffusion lab, the starch was too big and could not go through the artificial membrane. If the food is too big, it will not be able to enter the cell.