1. What is digestion? a. Digestion is the intake of food and its journey through all the digestive organs, with the help of enzymes and other digestive molecules. 2. What are the three types of organic molecules (energy yielding) broken down by the digestive system? b. Proteins, sugars, and carbs.
3. What are the three types of inorganic (non-energy yielding) molecules processed by the digestive system? c. Fats.
4. For each of the three types of organic molecules explain what they are broken down into. Where they are broken down (primarily). Give a food as an example of each type of organic molecule. d. Amino Acid, Simple Sugar, Pyloric Acid 5. How does chemical digestion differ from mechanical digestion? e. Chemical is bacteria breaking down food, mechanical is chewing,
6. What is peristalsis? f. It is the involuntary constriction and relaxation of muscles. 7. Explain how activities in the large intestine help maintain homeostasis. g. They provide you with nutrients and it helps you stay healthy. 8. What is a bolus? h. A chewed food.
For Questions 9 and 10 you need to be specific and thorough. You are basically walking someone through the process of digestion with your answer. 9. What happens to food in the upper GI? Name the organs involved. i. In the upper GI the food is mushed with the teeth in the mouth and broken down by the saliva with the help of the salivary glands. Then though food is sent to the pharynx and then to the esophagus where it is sent to the stomach. 10. What happens to food in the lower GI? Name the organs involved. j. In the lower GI the stomach