The Button was a meta-game and social experiment hosted by Reddit that featured an online button and 60 second countdown timer that would reset each time the button was pressed.
After the stomach, food travels to the small intestine. The enzymes in the small intestine work best in alkaline conditions, but the food is acidic after being in the stomach. A substance called bile neutralises the acid to provide the alkaline conditions needed in the small intestine.Bile is produced by the liver and stored in the gall bladder. Bile and enzyme production in the liver and pancreas. Page: 1  1. 2  2. 3  3. 4  4. 5  5. 6  6. substance called bile neutralises the acid to provide the alkaline conditions needed in the small intestine. Bile is produced by the liver and stored in the gall bladder. Bile and enzyme production in the liver and pancreas. Page: 1  1. 2  2. 3  3. 4  4.
Let's follow the route of a piece of toast, to take a look at the digestive tract. After putting the toast into our mouth we chew it with our teeth. Not only is the toast ground into small pieces, but it is also mixed with saliva. Saliva contains enzymes. These enzymes break down molecules into smaller particles. A piece of toast is made of wheat and this contains starch. Starch is made up of long chains of carbohydrates. These chains are too small for the teeth to grind but the enzymes break these into smaller pieces. In other words, digestion starts in the mouth! So it is very important to chew your food well and not to rush it. After swallowing, the toast will go past the back of the throat, down the gullet to the stomach. The stomach contains very acid fluid and enzymes to break down the chain of molecules into even smaller pieces. The stomach's contents are so acid that, if you could put your finger in there, it would be broken down as well! Because of the acidity, most of the bacteria will be killed. The stomach can survive this acidity because it has a special lining.