Chemical Reactions In The Body Essay

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Chemical Reactions in the Body: Metabolism The human body is an interesting, yet complex concept to understand. There are millions of chemical reactions that take place in the body that help it function properly. Our bodies are natural reactants to the molecules we take in which create our source of energy. One of our everyday sources of energy comes from the food we eat. Our bodies carry out millions of chemical reactions to use energy through a metabolic process. In order to understand how the metabolic process works, we first must understand digestion The digestion process begins at the mouth. The food consumed is chewed into smaller particles. This increases surface area and allows digestive enzymes to access more surface area of swallowed food. The mouth contains the enzyme amylase which breaks down carbohydrate chains. The food then travels to the esophagus, which is a tube that connects the pharynx to the stomach. Wave-like contractions also called peristalsis aid in pushing the food down to the stomach. The stomach produces hydrochloric acid and pepsinogen. The hydrochloric acid helps convert pepsinogen to pepsin which is needed for protein digestion. Gastrin is a hormone that stimulates production of hydrochloric acid. The small intestine is where most of the nutrients are absorbed. The large intestine is where the waste is produced, water absorption occurs, and electrolytes produce vitamins. In order for the human body to function to its fullest ability, we must take in the required amount of nutrients. To achieve this, one must have a well-balanced diet which includes: vitamins, carbohydrates, minerals, fats, and proteins. Each compound is filled with energy that is waiting to be used up. Vitamins are most important because our bodies do not make them. Without the necessary vitamins, the body will develop deficiency symptoms and diseases. They are

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