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Science project idea on where is food digested.
Location of Food Digestion- Science Project Idea
Where is food of the human body digested?We know that food taken into the mouth passes down through the gullet into the stomach, where it remains for several hours, and then passes into the small intestine, and on into the large intestine.This entire tube extending from the mouth to the end of the rectum, the last division of the large intestine, is called the alimentary canal.The food is forced along through this tube by means of muscles in its walls. After the food has been broken up by the teeth and mixed with saliva which acts to some extent upon the starch, it is worked upon by enzymes of the gastric juice of the stomach which act chiefly upon the protein food, and by a number of enzymes from the pancreatic juice and intestinal juice which act upon all of the different nutrients.The bile, a juice manufactured by the liver, is of special use in digesting fat.As the food is digested, it is absorbed through the walls of the alimentary canal.Most of the absorption occurs in the small intestine. The material which reaches the large intestine is principally food which could not be digested and hence could not be absorbed.If this refuse material remains too long in the large intestine, which is the condition in constipation, bacteria act upon it and produce soluble poisons which are absorbed into the blood through the walls of the large intestine and give rise to headaches, an in- ability to do our best mental and physical work, and make the body, less able to resist disease. By the circulatory system of the blood the digested food is carried to various parts of the body, where it is used for growth and repair and as a fuel for the production of energy, or the excess of fuel food is stored up in the form of fat. The wastes which are produced in the different parts of the body as a result of oxidation and the activity of the living matter, are, in time, carried away by the circula tory system to the kidneys, lungs, and skin, by which they are taken out of the blood.
Science Project Idea Present the path a burger and its components takes after it is eaten.Show diagrammatically how all the constituent parts of the burger get absorbed.In the case of any vitamins or minerals present in the burger, where are they allocated first in the body.
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