How does the body find the energy it needs for all its metabolic reactions?
it has to be 200 words
All parts of the body (muscles, brain, heart, and liver) need energy to work. This energy comes from the food we eat. Our bodies digest the food we eat by mixing it with fluids (acids and enzymes) in the stomach. The stomach and small intestines absorb the glucose and then release it into the bloodstream.
Metabolism is the process by which your body converts what you eat and drink into energy. During this complex process, calories in food and beverages are combined with oxygen to release the energy your body needs to function.