The Digestive System Is A Unique Process Of The Digestive System

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Nutrition BIO-151
Chapter 3 Digestion
Cheyenne De Jong
October 8, 2017

The digestive system is a group of organs that work together. It is responsible for taking whole foods and turning them into energy and nutrients to allow the body to function, grow and repair itself. Today, I will explain how the digestive system performs this unique process. I’m having a loaded tuna sandwich with lettuce, tomato, cheese and mayonnaise. The bread of my sandwich is mostly carbohydrates. Carbs are the sugars, starches and fibers found in fruits, grains, vegetables and milk products. Carbohydrates contain macronutrients that provide fuel for the Central Nervous System and energy for working muscles. The tuna in my sandwich contains mostly proteins and is also high in vitamin B12. Proteins are substances that have amino acids, compounds, carbon, hydrogen, oxygen, nitrogen and sometimes sulfur and are found in many foods. They are essential in the diet for growth and repair of tissue and can be obtained from foods such as meat, fish, eggs, milk and legumes. The lettuce contains fiber, carbs, and vitamins C and A. The tomato also has vitamin C. My cheese has protein, calcium, vitamin B12 and also fats, or lipids. The mayonnaise is mostly lipids as well. Lipid is another word for “fats”. They are stored in the body as energy reserves and are also important components of cell membranes. As I take my first bite, the sandwich enters my mouth. My mouth releases enzymes like amylase and
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