How Digestion Works
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Objective
I can describe how the digestive system breaks down food into nutrients the body can use.
Part 1 of 4
Warm-up video
Amoeba Sisters · 8:43Vetted channel
We don't generate video — this one is by Amoeba Sisters on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
The four major tasks of the digestive system are ingestion, digestion, absorption, and elimination.
- 2
Saliva contains enzymes that start chemical digestion in the mouth, while teeth perform mechanical digestion.
- 3
The liver produces bile to help break down lipids, the gallbladder stores the bile, and the pancreas produces juices with digestive enzymes.
Part 3 of 4
Practice
12 questions
What are the four major tasks accomplished by the human digestive system, as discussed in the video?
Explain the difference between mechanical and chemical digestion, and give an example of where each occurs in the digestive system.
Part 4 of 4
Exit ticket
Quick comprehension check
“Describe the four major tasks of the human digestive system and what happens during each task.”
Sample answer included in the free materials
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Teacher Guide
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