Digestion system

First in the digestion system the food you smell or want to eat makes saliva in your mouth. Then when you eat the food it turns into smaller pieces by you chomping on it with your teeth. Then your saliva brings the small broken up pieces down the esophagus. When it slowly passes through the esophagus the muscles push the food down. Next the food enters your stomach where the hydrochloric acid breaks food down even more to molecules. Then when the food is all broken down it travels through the small and large intestine. Finally the waste exits your body out of the rectum. And purpose of the lab was to show how the food is broken down in the stomach of the digestion system. Like the test tubes C and D had the hydrochloric acid in it like our stomach does. Unlike the test tubes A and B  which just had the pepsin and regular water. The test tubes C and D demonstrate what happens in our stomach with the hydrochloric acid. In conclusion, the lab was trying to show the simmilar actions that take place in our stomachs.