Expert Ans it In which part of the alimentary canal is the digested food mainly absorbed? Explain how.

Dear student.Major absorption occurs in small intestine. During absorption in small intestine, the final products of digestion such as glucose, fructose, fatty acids, glycerol and amino acids (almost all nutrients) pass through intestinal mucosa into the blood or lymph. Absorption is carried out by passive, active or facilitated transport mechanisms. The innermost layer of alimentary canal-mucosa, forms the finger-like folding called villi in small intestine that increases the surface area for absorption. Villi contain blood and lymph capillaries. The digested insoluble fat components cannot be transported directly to blood so they are first converted to other forms and transported to lacteals (lymph capillaries) in the villi. These lacteals further release absorbed substances into the blood stream. Regards.