The only thing we understand about hamburgers is that they “taste great”. Whatever else that happens to hamburgers after it enters the mouth is left to the imagination. But then, it would not hurt to understand the process which the hamburger undergoes with its journey starting from the mouth.
As a rule, to obtain all the nutrients out of the food the human body utilizes processes called absorption and digestion. A number of the processes of absorption are mechanical and chemical.
Mastication begins the processes of mechanical digestion, in which the hamburger constituent parts are broken into smaller ones. The chemical digestion kicks off when the food gets in contact with the saliva, which contains enzymes. These enzymes break down the hamburger into simple sugar and protein. From here, the particles are now transferred for their onward journey to the stomach via the pharynx without the occurrence of peristalsis.
In the stomach, it gets converted to a semisolid liquid called “chyme”, and is acted upon by the gastric juice; breaking down protein molecules in the meat and converting them into peptones. Next, the lipase hydrolyzes the fatty acids from the bun and meat. Further absorptions take place in the duodenum. Subsequently, the molecules are transferred to the liver where the glucose molecules convert into glycogen which stores the fats, proteins, and carbohydrates from the meat, starch from the bun, while the bile emulsifies the fat.
Finally, the hamburger gets to the large intestine where the water from bun and meat is reabsorbed, and where vitamins are generated and absorbed. Unfortunately, viral or bacterial infections may occur, and exasperate the colon. This leads to hamburgers or other foods causing a decrease in water re-absorption, and hence, diarrhea. And, when water is reabsorbed in excess, it may lead to constipation.
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