1. (a) Pancreatic Cells
Glucose is a certain type of sugar that providing energy for a living organism and serves as a type of carbohydrate. It is found in the bloodstream of living organisms, however proper glucose levels have to be maintained in order for the body to be healthy. When glucose levels get too high, the pancreas releases a hormone known as insulin which regulates the amount of blood glucose in the bloodstream. If glucose levels drop too low, the liver in turn converts glycogen, a polysaccharide which forms glucose by hydrolysis, into glucose again.
2. Liver Cells
The liver aids digestion and regulates the amount of blood sugar by storing the excess sugar (a.k.a. glycogen) and breaking down the excess glycogen only when needed. When an organism has consumed something, large amounts of sugar would be carried from the intestines and stored as glycogen. When an organism undergoes stress, more sugar is required to sustain the body and glycogen is broken down into simple sugars again to be released into the bloodstream.
Liver
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