ANSWER EACH QUESTION PLS
Meat was placed in three test tubes. One test tube contains pepsin, one contains hydrochloric acid, and the other contains a mixture of hydrochloric acid and pepsin. The test tubes were heated to body temperature and allowed to sit. Observe the test tubes and answer the questions in your lab report.
1. Rank the test tubes in order of greatest amount of digestion to least amount of digestion. For each tube, explain why it would have exhibited that level of digestion.
2. How could the experiment be modified to further test human digestion actions? What variables would you change? What would you keep the same?
3. In which test tube was the activity most like that of a real human stomach? Explain.
Answers
Effect of various digestive enzymes
Step by step explanation:
- The order of greatest amout of digestion to least is:
Mixture of Pepsin and HCL, Pepsin , hydrochloric acid.
Pepsin breaksdown down the protien/peptide particle from the meat into amino acid which is a process of breaking them down into smaller particles. Hydrochloric acid also denatures protiens but lesser than pepsin. hence combination of both will be more beneficiary then pepsin and lastly HCL.
2. Protein is not the only element digested in stomach. Various other elements like carbohydrate , lipids can be added to further test human digestion action. The temperature can be kept same.
3. The test tube containing mixture of Pepsin and hydrochloric acid is most like that of real human stomach. Pepsinogen is an inactive form of pepsin which is released by chief cells present in stomach. Hydrochloric acid present instomach converts this inactive form of pepsinogen into active form of pepsin.