Over time, many questions and theories have arisen about daily life. Thanks to chemistry, the study of matter, it was possible to answer these questions. From the mixture of gases in the air we breathe to the organic substance in plastic, chemistry is visible everywhere. However, most people misunderstand the power of chemistry over our own bodies. How is it that a simple loaf of bread, once consumed, can be transformed into fuel for the human body? By using the digestive system and its many organs through the process of digestion and metabolism, our body receives the energy it needs to keep going. Chemistry can be thought of as the process of how food enters and exits the body, depending on the rate of our metabolism and also the transfer of energy. The chemistry of the digestive system is a very important process, because without it there would be no human life. Compared to all other systems in the body, the digestive system is one of the most diverse and important. According to Robert Sullivan, the digestive system is a group of organs whose function is based on the process of processing food, absorbing nutrients to produce energy, and eliminating bodily waste (Sullivan, 2008, p .33). The organs that make up the digestive system are: the esophagus, stomach, small intestine, pancreas, liver, gallbladder, colon or large intestine, rectum and anus (Ballard, 2003 ). Imagine yourself eating a nice dinner with deliciously flavored food. Now imagine that you are eating food. Have you ever wondered where your food went once you ate it? Through your digestive system where the mass of food undergoes a process called digestion. Digestion is the chemical and physical breakdown of food into forms such as en...... middle of paper...... more. Even today, more and more chemists are developing new discoveries and important facts about the many processes and reactions of the digestive system. Perhaps the latest breakthrough in this area would be new diets that tend to accelerate the metabolic process that accelerates the breakdown of cells, including fats, resulting in a slimmer waistline. The digestive system is unique and different from all other systems of the body because it has many organs that each have their own important role, a specific process of moving food and finally multiple reactions via metabolism and other processes via the 'ATP which converts food. we eat fuel. Without chemistry, the digestive system would fail and there would be no human life. Therefore, it is important to accept the essential role that chemistry plays not only in human life, but also in all life..