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Digestion process for class 10th

The semi-digested food from stomuch chyme enters into small intestines, where complete digestion of chyme takes place by the action of more enzymes and juices.Small intestines are divided into three parts
1. Duodenum -- forms the first section of Small intestine. Pancreas and liver are connected to this region.These two organs release their juices i.e digestive enzymes and bile respectively. Trypsinogen  and chymotrysinogen are the digestive enzymes released into the duodenum.

2.The jejunum-- is the middle section of small intestines.It is responsible for the absorption of
nutrients from the digested food.

3.Ileum ---is the last section of small intestines and is connected to the large intestines. This section absorbs the nutrients which were not absorbed by Jejunum.

The waste material enters into the large intestine where excessive water is absorbed.

Waste material gets collected in a bag like structure called Rectum and than this waste material is thrown out from the body through Anus.

In the next post we will disscuss how nutients are absorbed in the small intestines...??

Question for you..... 1.The semi-  digested food is called as .........??

2.Name the two enzymes released in Duodenum..??

For previous post click here

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Absorption of Nutrients in Small Intestines

The digested food is now in simple form and is ready to use by cells. The inner wall of small intestines is called as Mucosa, it has numerous finger like projections called as Villi (singular- villus), which in-turn has finger like projections called as micro-villi. The purpose of villus is to provide large surface area for nutrient absorption. Villi have large network of blood capillaries, where the nutrients are absorbed in blood by diffusion.Most of the nutrients are absorbed in jejunum. except Iron is absorbed in duodenum  vitamin B12 and bile salts are absorbed in the terminal ileum. Through blood digested food reaches to each and every cell of the body.

Digestion in Human Beings for class 10th

Digestion As the Human Beings show Holozoic mode of nutrition , theres is a system in Human Beings which Digests this food into the simple molecules called Gollucose. Digestion:- The process in which an organism breaks complex food molecules into simpler once for respiration is called digestion. Q.1 what is need to Digest food?  As the food is in complex form , body cells cannot use it directly so there is a need to change its form from complex to simple one. Digestion in Human Beings Digestion In Human Beings starts from mouth.The cavity inside the mouth is called as Buccal cavity.Buccal cavity contains Teeth and Tongue.In mouth food is broken into small pieces with the help of Teeth and is mixed with saliva secreated by Salivary gland. Saliva contains digestive enzymes called as Salivary Amilase (Ptylin).These enzymes digest food to some extend.Tongue in a mouth helps in mixing food with saliva and is also percieves the taste of the food. The food than enters i...