WHAT HAVE YOU FOUND OUT?
1. What changes occur in the bread /cracker after several minutes of chewing it?
2. What is the role of saliva in the changes of the taste?
3. How does the tongue help in swallowing food?
4. What process of digestion occurs in the mouth?
3. What will happen next if the food is in the esophagus?
CONCLUSION:
Make a conclusion by answering the problem.
1. What changes occur in the bread /cracker after several minutes of chewing it?
2. What is the role of saliva in the changes of the taste?
3. How does the tongue help in swallowing food?
4. What process of digestion occurs in the mouth?
3. What will happen next if the food is in the esophagus?
CONCLUSION:
Make a conclusion by answering the problem.
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Answers & Comments
Answer:
1.Amylase breaks down the complex starch molecules into simple sugars. When you chew a cracker, when it turns sweet this taste is due to the amylase beginning to break down the carbohydrates into sugars.
2.In the initial process of taste perception, saliva acts as a solvent for taste substances; salivary water dissolves taste substances, and the latter diffuse to the taste receptor sites. During this process, some salivary constituents chemically interact with taste substances.
3.The esophagus does not digest the food, but it does the important job of pushing the food down into the stomach as well as keeping it from coming back up into the mouth. Once in the stomach, further digestion takes place. The stomach produces acid that helps to kill bacteria and other germs that may get into food.