How Digestion Works
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Objective
I can describe how the digestive system breaks down food and absorbs nutrients.
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 like salivary amylase to 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 pancreatic juices with digestive enzymes.
Part 3 of 4
Practice
8 questions
What are the four major tasks accomplished by the human digestive system, as highlighted in the video?
Briefly explain the difference between mechanical and chemical digestion, providing an example of each that occurs in the mouth.
Part 4 of 4
Exit ticket
Quick comprehension check
“Describe the four main steps of the human digestive system.”
Sample answer included in the free materials
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