Digestive System Assignment Introduction: Digestion is the dish out of luckinessing passel regimen into low- kill molecules that wad be absorbed into the bloodstream. The digestive systems most of the essence(p) function is to will the be with ENERGY. Other functions take on: Â· financial aid in the digestion and metabolism of viands Â·Muscle contraction Â·Circulation and organisation of blood cells Â· building advanced tissues-maintenance and repair Â·Nerve transmission Â·Maintain body temperature Physical digestion is when the food molecules argon bewildered down into small pieces by the digestive systems organs to change it to be processed by the body. Chemical digestion occurs when special chemical substances called enzymes break down the already small molecules flush smaller. From t here(predicate) trey chemical reactions take place, depending on what food type is cosmos digested. Protein: The protein contained in the burger enters the mouth where the teeth philander and chew it into smaller pieces. This is physical digestion. It then enters the jump, which is where the digestive process begins. The presence of food in the stomach stimulates the stomach walls to fuck off gastric juices containing a hydrochloric acid, mucous secretion and enzymes called pepsin and protease, which begins the digestion of the proteins. The hydrochloric acid provides acidic conditions call for for the enzyme protease. This is also cognize as chemical digestion.
In the stomach some proteins ar down(p) down into smaller particles called polypeptides. From here the particles travel into the small intestine, which is the chronic part of the digestive tract. Enzymes released from the pancreas and colorful continue the sectionalisation of proteins, polypeptides and peptides and in the end aminic group acids, which be absorbed through the intestinal wall into the bloodstream. From there they ar delivered to organs and tissues for maintenance, repair and growth. If the amino acids argon not needed, they are broken down into urea and glucose. The urea... If you want to get a full essay, order it on our website: Ordercustompaper.com
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