Read the sentence below, considering the context of the text, and choose the alternative that best fills in correctly and respectively the blanks.
“When we eat, the food is _________ down into glucose (blood sugar), the body’s main energy source. As blood flows through the pancreas, this organ detects the high levels of glucose and knows to release insulin, a hormone that it produces in order to allow the cells _____________ the body to use the glucose. The cells have insulin receptors that allow glucose to enter. Then the cell either uses the glucose to make energy right away or __________ it as a future energy source.”