viilis are present in intestine to maximize the contact area to food to extract things like water,etc
while they are not present in stomach because here food is to be glazed with digestive enzymes and juices.
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Devanshi Modha answered this
The major portion of absorption takes place in small intestines. In stomachsimple sugars, water and alcohol are absorbed. Villi are specialized projections insmall intestine with large absorbent area. This facilitates better absorption ofcompelx molecules as well. As food is fit to be absorbed only after completedigestion so villi’s turn come after all the digestive processes are complete.
3
Dadhichi answered this
in stomach simple sugars , water and alcohol are absorbed. but it is not possible to absorb other elements as they are in complex state from stomach to small intestine the digestion process is almost completed and the complex food molecules are converted into simpler form and are ready to be absorbed. this is why it helps villi to absorb all the efficient thing present there which were not absorbed in stomach. so if villi were present in stomach most of efficient things could not have been absorbed.
hope it helps you :)
6
Imran answered this
villi has to absorb the food and send it to blood which will send digested food to all cells
in stomach food is not completely digested but in small intestine the food is completely digested , thats y villi are present in small intestine coz they want to absorb completely digested food so cells can use it to generate energy
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Vineeta answered this
thanxxxx for all
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Sakshi Jatia answered this
villi are present in stomach also but very less
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Nida Qamar answered this
bile juice contains no digestive enzymes,yet it is important for digestion.why?
1
Nida Qamar answered this
bile juice contains no digestive enzymes,yet it is important for digestion.why?
