Question

explain how digested food is absorbed into the blood in detial

Answer 1

Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream. Digestion is a form of catabolism that is often divided into two processes based on how food is broken down: mechanical and chemical digestion. The term mechanical digestion refers to the physical breakdown of large pieces of food into smaller pieces which can subsequently be accessed by digestive enzymes. In chemical digestion, enzymes break down food into the small molecules the body can use.

Answer 2

hi mate,

==> we know that the Columnar epithelium is located in the digestive tract such as the stomach, large intestine, small intestine and functions as a barrier to bacteria and other microbes but permits the absorption of digested food.

==> we know that the small intestine has millions of tiny finger-like projections called villi.

==>These villi increase the surface area for more efficient food absorption. that's why

small intestine is designed to have maximum absorption of food.

==>Within these villi, many blood vessels are present that absorb the digested food and carry it to the blood stream.

==> we know that the the small intestine has millions of tiny finger-like projections called villi. These villi increase the surface area for more efficient food absorption. Within these villi, many blood vessels are present that absorb the digested food and carry it to the blood stream.

==> and also we know that the food breakdown into glucose and then the cerb's cycle reaction takes that is given in the book class 10 bio and the rest material move in small intestine small villi like projection aborb the nutrients and that are absorb by cell and the cellulose of food which is indigested expelled out.

==> Digestive juice produced by the small intestine combines with pancreatic juice and bile to complete digestion.

==> The body completes the breakdown of proteins, and the final breakdown of starches produces glucose molecules that absorb into the blood.

===>>The small intestine, despite its name, is the longest part of the gastrointestinal tract.

==>> It works with other organs of the digestive system to further digest food after it leaves the stomach and to absorb nutrients.

I hope it helps you