1. Digestion An Absorbing Tale

2. 11/5/12 Do Now An Absorbing Tale  Key Question: How does your digestion system work?  Initial Thoughts:

3. Evidence: Reading  Article: Digestion - An Absorbing Tale  DO NOT WRITE ON THE ARTICLE  Take some sticky notes  You will read the article, and summarize the main points of each paragraph on the sticky notes.  LABEL EACH NOTE WITH ONE OF THESE:  MD – Mechanical Digestion  CD – Chemical Digestion  NA – Nutrient Absorption  SW – Solid Waste production/Water Absorption  Make sure to include enough details on your sticky notes, as you won’t have the article to refer to.

4. Evidence: Reading  Draw a simple digestion system  Place your sticky notes with arrows to help label your drawing.

5. Analysis Questions: 1) Paste the chart in your journal and fill it out. Functions of Digestive Organs Organ (or structure) Mechanical Breakdown Chemical Breakdown Nutrient Absorption Water Absorption and Solid Waster Production MouthXX Stomach Small Intestine Pancreas Liver Large Intestine

6. Analysis Question contd… 2) Why do you think people who have liver problems have to be on a strict diet? 3) How do the villi help nutrients move into the blood quickly? Hint: What would happen if there no villi, only a smooth surface?

7. Summary/Conclusion: Minimum of 4 sentences  What did you think before about how the digestion system works? (look back at your initial thoughts)  What did you learn about systems  What evidence do you have that you learned this?  Further Thoughts Make sure this is thoughtful and thorough.

8. Reflection:  Write a short poem about the digestive system

9. Big Idea  On your BIG IDEA PAGE  The D.S. breaks down food into nutrients so the body can absorb it and then get rid of wastes.