Absorption of digested food occurs mainly in the small intestine. Comment.
Answers
Answer:
Absorption of food occurs mainly in the small intestine . The small intestine is 7m long and 2.5cm wide. The small intestine is divided into 3 sub-regions--duodenum,jejunum and ileum. The inner lining of the ileum is made into a great no. of tiny finger-like projections called villi
Explanation:
The small intestine serves for both: digestion ans absorption
the ileum is adapted in the following ways:-
1. It is very long; more surface area
2. It has a large no. of villi to further increase the surface area of absorption
3. Each villi has a single celled epithelium which makes absorption easy.
4.It is narrow for slow movement of food allowing absorption
Answer:
absorption of digested food in the small intestine
The inner wall of small intestine absorbs the digested food. it has a large number of finger like projection called villi . the villi increase the effective surface area for absorption of digested food. this absorbed food is passed to blood vessels present in Villi. the food Thus get transported to all part of the body via the blood. it is used to produce energy and to build Complex substance required by body. this whole process is called assimilation