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How is the small intestine designed to absorb digested food?


  • The walls of the small intestine contain the intestinal juices which complete the digestion of complex carbohydrates into glucose, proteins into amino acids and fatty acids into glycerol. These molecules are small in size and water soluble.
  • The inner surface of the small intestine has numerous tiny finger-like projections called villi , which increase the surface area of the small intestine leading to higher absorption.
  • The digested food from the walls of the small intestine moves into our blood.

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CA Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Accounts and English at Teachoo