Name: _______________________
Date: _________________
Period #: _________
Digestive System Study Guide
Digestive System:
1. Below, draw a model of the digestive system. Make sure it is detailed, labeled and
accurate! Be sure to include evidence and functions for each organ.
2-10. List the functions of the organs below: Be descriptive!
Mouth –
Esophagus –
Stomach –
Small Intestine –
Large Intestine –
Rectum –
Liver –
Pancreas –
Gallbladder -
Directions: Complete the questions below in complete sentences.
11. Explain the contents of the stomach and how it digests food. (Hint…reference the lab!)
12. The mouth has both teeth and saliva. Explain why both are necessary.
13. Define peristalsis. Explain how it relates to the esophagus in detail.
14. Explain how nutrients from the digestive system get to the rest of the body.
15. When you cough because your soda went down the wrong pipe, what is happening?
Explain what parts of the body contribute to this.
16. Where does most protein digestion take place? Where does most carbohydrate digestion
take place? Where does most fat digestion take place? What liquids in each of these
locations help with the breakdown of these things?
17. List 3 foods high in protein. List 3 foods high in carbohydrates. List 3 foods high in fat.
18. Why do you think the small intestine is so long? Explain why you think it has so much
surface area. Use as many details as possible.
19. Do you get energy from diet soda? Explain.
20. List the parts of the digestive system that food goes through in order from start to finish:
21. In which two organs does most of the digestion of food take place?
22. Which organ is responsible for most chemical digestion? Which organ is responsible for
most mechanical digestion?
23. Define mechanical digestion. Define chemical digestion. How do they work together?
Give examples using the stomach and mouth.
24. Where does digestion begin? Explain how you know.
25. Why do we need to eat? Explain using details!