Question

describe the digestion of food in humans with the help of well labelled diagram ​

Answer 1

first of all the food particle is taken by a human and chewed properly through which an enzyme salary amylase act on it to convert the sugar in glucose and this food as possible into the stomach with the help of tongue. this food passes from oesophagus with the help of peristaltic moment now this food finally reaches to stomach now the gastric gland present in stomach releases many enzymes which help in proper digestion of food

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Answer 2

Answer:

the food first enters the mouth where the teeth grinds the food and and tongues helps in movement of food and in mixing of saliva.saliva<having the salivary amylase > breaks down food to simple sugar.

then the food goes through the esophagus with peristalsis<contraction and relaxation of muscles>

then the food enters stomach.the stomach has mucus in the walls to protect it from hcl 's action.hcl in the stomach creates an acidic medium for pepsin to act on proteins to break it down.

then it goes to small intestines.on the way to the way to smal intestine the bile juice acts on the food ,it makes a basic medium for pancreatic enzymes to react.it also breaks down larger globules of fat into smaller once to increase the surface area and easier break down of fat.lipase .pancreatic enzyme,breaks down fat into fatty acid and glycerol and trypsin break protein further to make it into amino acids.

the small intestines have numerous villi with rich blood supplyand absorb the food .then it goes to large intestine where water is reabsorbed and then exits to rectum then anus.