Practice identifying the main organs of the digestive system and explaining how digestion and absorption happen in the body.
Read each problem carefully. Answer in complete sentences and show your thinking when needed.
How food moves through and is broken down by the body
Biology - Grade 6-8
- 1
What is the main job of the digestive system?
- 2
List the organs food passes through in order from the mouth to the end of the digestive tract.
- 3
Explain what happens to food in the mouth.
- 4
What is the role of the esophagus in digestion?
- 5
Describe two important things the stomach does during digestion.
- 6
Why is the small intestine an important part of the digestive system?
- 7
What is the job of the large intestine?
- 8
How do villi help the small intestine do its job?
- 9
Name one organ that helps digestion but food does not pass through, and explain how it helps.
- 10
What is peristalsis, and why is it important?
- 11
A student says digestion only happens in the stomach. Is this correct? Explain your answer.
- 12
After nutrients are absorbed from the small intestine, what happens next in the body?