Question

Explain the process of digestion in human beings?

Answer 1

HEY FRIEND !!

The mouth is the beginning of the digestive tract. In fact, digestionstarts here as soon as you take the first bite of a meal. Chewing breaks the food into pieces that are more easily digested, while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use.

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Answer 2

digestion is the process of simplification of complex food particles into simple ones so that they can be absorbed by the blood our food consists of Carbohydrates fats proteins vitamins minerals and water out of these vitamins minerals and water are already simplified, therefore these do not undergo digestive action these are observed as such show digestive action takes place only on carbohydrates, proteins and fats during digestion, carbohydrates are simplified into monosaccharides, proteins into amino acids and fats in to fatty acid and glycerol.

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when food is ingested it is to read and masticated with the help of teeth and tongue saliva contains an enzyme ptyalin which converts carbohydrates starch into maltose but there is no digestion of proteins and fats in the buccal cavity when food reaches Stomach digestion of proteins begins gastric juice secreted by stomach wall contains HCL and various enzymes like pepsin and rain in which partially digested the proteins HCL serves to activate these enzymes and also makes the medium acidic gastric lipase made I just a little fats, but there is no digestion of carbohydrates in stomach now the food goes to the small intestine in duodenum comma bile juice pancreatic juice mixed with the semi digested food bile makes the medium alkaline and also emulsifies the feds pancreatic juice contains beta amylase, which converts remaining carbohydrates to maltose trypsin and chymotrypsin of pancreatic juice converts partially digested proteins to polypeptides in ileum intestinal juice plays the final role it contains enzymes which convert maltose and all other disaccharides to monosaccharides like glucose and Fructose similarly, enzymes like peptidases converts all polypeptides into amino acids intestinal life is acts on emulsified fats and convert it into fatty acids and glycerol in this way all components of the food gets digested completely in small intestine

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