Question

1. why does glucose stay in the blood stream in someone who has diabetes?

Explanation:

Diabetes involves issues with insulin (production or cellular response to it). Insulin's role is to facilitate glucose uptake by cells. When insulin function is impaired, glucose can't leave the blood to enter cells, so it stays in the bloodstream.

Answer:

In diabetes, glucose stays in the bloodstream mainly because the body either doesn't produce enough insulin (in type 1 diabetes) or the cells become resistant to the insulin that is produced (in type 2 diabetes). Insulin is a hormone that helps glucose move from the blood into the cells. Without sufficient effective insulin, glucose cannot enter the cells properly and thus remains in the blood.