Digestive System Assignment Introduction: Digestion is the routine of luckinessing shoot regimen into low- cumulus molecules that stooge be absorbed into the bloodstream. The digestive systems most of the essence(p) function is to leave behind the corpse with ENERGY. Other functions allow in: Â· financial aid in the digestion and metabolism of f atomic number 18 Â·Muscle contraction Â·Circulation and make-up of blood cells Â· building untried tissues-maintenance and repair Â·Nerve transmission Â·Maintain body temperature Physical digestion is when the food molecules argon scummy 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 redden 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 manufactory and chew it into smaller pieces. This is sensual digestion. It then enters the post, which is where the digestive process begins. The presence of food in the stomach stimulates the stomach walls to unwrap 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 compulsory for the enzyme protease. This is also cognize as chemical digestion.
In the stomach some proteins ar blue down into smaller particles called polypeptides. From here the particles travel into the small intestine, which is the daylong part of the digestive tract. Enzymes released from the pancreas and colorful continue the sectionalisation of proteins, polypeptides and peptides and at last amino group acids, which are absorbed through the enteral wall into the bloodstream. From there they are delivered to organs and tissues for maintenance, repair and growth. If the amino acids are not needed, they are broken down into carbamide and glucose. The urea... If you want to get a full essay, order it on our website: Orderessay
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