Final answer:
Glucose is necessary for our bodies as it is the primary source of energy for cells. It is used in cellular respiration for energy production. The digestive system breaks down food into smaller pieces, including glucose, for absorption and utilization.
Step-by-step explanation:
Glucose is necessary for our bodies as it is the primary source of energy for cells. It is used in cellular respiration, a process that converts glucose and oxygen into carbon dioxide, water, and energy in the form of ATP. This energy is then used for various physiological functions such as muscle contraction, nerve impulses, and maintaining body temperature.
The digestive system must break down food into smaller pieces, including glucose, for efficient absorption and utilization. When we consume carbohydrates, they are broken down into glucose molecules by enzymes in the digestive system. Glucose is then absorbed into the bloodstream and transported to cells throughout the body, where it can be used for energy or stored as glycogen in the liver and muscles.
Learn more about Glucose and its importance in cellular respiration and the digestive system