When The Stomach Churns Lab: Part 2

Today in class, we finished the lab we did yesterday that models how the stomach digestive juices work. The egg whites in each test tube did change in appearence, but the results for the blue papers that change to pink when acid is in its presence were the same as day 1. We learned that the hydrochloric acid and pepsin together helps in the process of digestion. However, the digestion process is slow. The hydrochloric acid is used to help dissole the broken food particles. The reason the food particles are broken down is because the pepsin makes the protiens into smaller pieces. Without pepsin, hydrochloric acid won't work properlly and vise versa.