Explain briefly the process of digestion of cooked potato in the human digestive system.
Dear student,
Potatoes are rich in carbohydrate. Thus their digestion begins in the mouth itself by the action of salivary amylase. Where the polymer of sugars are broken down into oligo-saccharides. This masticated bolus is then passed down through the oesophaguses into stomach, where the food is subjected to acidic gastric juice. Here, digestion of protein takes place. Cooked potatoes have very less protein content, thus whatever meagre amount of protein is present will get digested here by the action of pepsin. The chyme is then passed onto duodenum where pancreatic juice and bile juice is poured. Pancreatic juice has plethora of enzymes like trypsin, chymotrypsin, amylase etc. Here the food is completely broken down into simpler monomeric form. Thus all the starch will be converted into monosaccharides and disaccharides; peptides into amino acids and nucleic acid into nucleotides and nucleotides. They will be eventually absorbed by the brush border epithelium and the rest of the food is then passed into large intestine where it stays for 2-6 hours and all the water is absorbed from it before defecation via rectum followed by anus.
Regards,
Potatoes are rich in carbohydrate. Thus their digestion begins in the mouth itself by the action of salivary amylase. Where the polymer of sugars are broken down into oligo-saccharides. This masticated bolus is then passed down through the oesophaguses into stomach, where the food is subjected to acidic gastric juice. Here, digestion of protein takes place. Cooked potatoes have very less protein content, thus whatever meagre amount of protein is present will get digested here by the action of pepsin. The chyme is then passed onto duodenum where pancreatic juice and bile juice is poured. Pancreatic juice has plethora of enzymes like trypsin, chymotrypsin, amylase etc. Here the food is completely broken down into simpler monomeric form. Thus all the starch will be converted into monosaccharides and disaccharides; peptides into amino acids and nucleic acid into nucleotides and nucleotides. They will be eventually absorbed by the brush border epithelium and the rest of the food is then passed into large intestine where it stays for 2-6 hours and all the water is absorbed from it before defecation via rectum followed by anus.
Regards,