The Digestive System Essay - 1945 Words.
NR228 Digestion Essay. 1859 Words 8 Pages. Show More. Let’s follow the path of a delicious ham and cheese sandwich with lettuce and pickles as it is eaten and digested! Start at the beginning and discuss the anatomical parts as well as the biochemical roles that contribute to this sandwich being turned into chemical energy. Be sure to include mechanical and chemical mechanisms, along with.
The digestive system can be divided in to two systems. They are upper gastrointestinal tract and lower gastrointestinal tract. The upper gastrointestinal tract consists of several organs like mouth, oral cavity, pharynx, esophagus and stomach. The lower gastrointestinal tract consists of small intestine, ileum, large intestine, anus and rectum. (Cheryl Jakab, 2007) The functions of some.
Human digestion Essay The salivary glands are the first to react in the digestive process, which are usually triggered by either the sight or the smell of food. Food enters the digestive tract through the mouth where the teeth, tongue, and salivary glands help moisten and break down the food within minutes. The food then becomes something called a bolus, which will travel through the pharynx.
Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream. Digestion is a form of catabolism that is often divided into two processes based on how food is broken down: mechanical and.
Digestion is a complex process involving specialized anatomical and physiological adaptations for the absorption of nutrients. Its purpose is to prepare food for use by cells and organs throughout the body. Because large food particles cannot reach cells, the process of digestion breaks the food down into nutrients that can be absorbed into the blood stream and carried to any cell in the body.
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Digestion Process. The digestion process is a series of reactions of food with the digestive hormones and juices. This starts right from the oral cavity. Why is digestion important? It is an important process that breaks down the proteins, fats, carbohydrates, vitamins, minerals into simpler forms so that it can be absorbed easily into the body cells.. During this process, proteins are.