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Unit 2 Digestive Systems P2

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Digestive system P2

The Digestive system is a bodily system that converts food into energy, nutrients and cells for the repair of the body. The digestive system consists of a number of organs; the Stomach, Liver, Gallbladder, Pancreas, small Intestine, large Intestine and many more.
Digestions
Digestion is the process that turns food into its component chemicals. This starts off with mechanical digestion, this is the physical breakdown of big pieces of food into smaller pieces, chewing in your mouth then continues with the mixing of the muscular organs stomach and small intestines. At the same time chemical digestion is occurring, this breaks down more larger, complex molecules into smaller molecules that are easier to absorb.
Chemical digestion also started from the chewing process in the mouth where food is mixed with saliva, saliva splits complex carbohydrates to simple carbohydrates. It continues in the stomach with enzymes and acid but the rest happens in the small intestines. The pancreas produces pancreatic juice that has digestive enzymes that break down complex molecules like fats and proteins.
Absorption …show more content…
It also starts in the stomach where water and alcohol would be absorbed into the bloodstream. Small blood vessels in the small intestine’s wall pick up the molecules and delivers them to the rest of the body. The large intestine also absorbs water and vitamins.
Excretion
This is the process of getting rid of the waste and all the indigestible substance so they don’t accumulate inside the gut. The brain commands this process

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