1.  Homework:  Section 38-2: Notes on the structures & functions of at least 3 digestive organs (we’ll start this in class)  Complete the Denatured Enzyme Lab Report for Tomorrow!  Do Now:  Clear your desks for the Carbon Compounds and Enzymes Quiz  It’s a long quiz – you will need the whole period Bio 9C: Monday, 11.18.09 Title: Carbon Compounds and Enzymes Quiz 1 st Half of Double Block

2.  Do Now: What do each of the following words mean? Structure Function  Today’s Objectives:  Describe the difference between structure and function, and explain how an object’s structure relates to its function  Describe the structures and functions of digestive system organs, and explain how they relate to each other Bio 9C: Monday, 11.18.09 Title: Digestive System: Structures & Functions 2 nd Half of Double Block

3. Extended Do Now:  Describe the structure of this object. (What is it made of? What’s its shape? What parts does it have?)  What is the function of this object?  How does its structure help it to perform its function? Object #1: Objectives for Class:  Describe the difference between structure and function, and explain how an object’s structure relates to its function  Describe the major structures and functions of all organs in the digestive system

4. Extended Do Now:  Describe the structure of this object. (What is it made of? What’s its shape? What parts does it have?)  What is the function of this object?  How does its structure help it to perform its function? Object #2: Objectives for Class:  Describe the difference between structure and function, and explain how an object’s structure relates to its function  Describe the major structures and functions of all organs in the digestive system

5. Extended Do Now:  Describe the structure of this object. (What is it made of? What’s its shape? What parts does it have?)  What is the function of this object?  How does its structure help it to perform its function? Object #3: Objectives for Class:  Describe the difference between structure and function, and explain how an object’s structure relates to its function  Describe the major structures and functions of all organs in the digestive system

6. Discuss the Do Now… Function: Crush things Relate structure to function:  Hinges allow it to open to receive things & close to crush them  Metal provides hard crushing surface  Ridges prevent things from slipping out Similar digestive organ: Mouth Function: Hold/contain/store things Relate structure to function:  Sack-like shape with space inside to hold stuff  Drawstring opening can open to receive things, and close so they don’t fall out Similar digestive organ: Stomach Function: Dry things by absorbing water Relate structure to function:  Cotton material is very absorbent  Tiny strings on surface provide more space for absorbing stuff Similar digestive organ: Small intestine

7. Small Group Activity  Each group starts with a different organ (mouth, esophagus, stomach, small intestine, large intestine)  Group procedure: 1. Get textbooks for each person 2. Read the section on your organ (silently or quietly aloud to the group) (on pgs. 978-985) 3. Each person take notes on the following: a) Describe the structure of the organ b) Describe the functions of the organ c) How does its structure help it to perform its functions?  HW: Do the same thing for two more digestive organs in Section 38-2. Objectives for Class:  Describe the difference between structure and function, and explain how an object’s structure relates to its function  Describe the major structures and functions of all organs in the digestive system

8.  Homework:  (Adjusted from Assignment Sheet) Re-read pages 982-983 and look especially at Figure 38-14. In your notebook, write a paragraph that explains how the structure of the small intestine fits its function. As part of your answer, compare the small intestine to a towel!  Do Now:  Which organ is the most confusing to you right now? Why? If this isn’t addressed by the end of class, ask the question!  Today’s Objectives:  Describe the difference between structure and function, and explain how an object’s structure relates to its function  Describe the structures and functions of digestive system organs, and explain how they relate to each other Bio 9C: Thursday, 11.19.09 Title: Digestive System: Structures & Functions

9.  Homework:  Complete Digestion Project Outline at least through Step 2 for the start of tomorrow’s class.  Do Now:  What are the structures on the inside of the small intestine called? What is their major function?  Today’s Objectives:  Describe the structures and functions of digestive system organs, and explain how they relate to each other  Explain the purpose of the Digestion Project and identify what meal you will use. Bio 9C: Friday, 11.20.09 Title: Digestive System: Structures & Functions

10. MOUTH Structure: Mechanical Digestion/Absorption: Chemical Digestion: Structure-Function Connection: GALLBLADDER Major Function: LIVER Major Function: STOMACH Structure: Mechanical Digestion/Absorption: Chemical Digestion: Structure-Function Connection: ESOPHAGUS Structure: Mechanical Digestion/Absorption: Chemical Digestion: Structure-Function Connection: PANCREAS Major Function: Hinged jaws, hard teeth, muscular tongue Crushing, grinding, moistening food Starch salivary amylase Glucose Jaws open & close to crush; hard teeth grind; tongue mixes food w/ saliva Long muscular tube Pushes food from mouth to stomach by peristalsis (waves of muscle contraction) None Muscles help squeeze food down the tube Muscular sac containing acids & enzymes Food churned/mixed with acids & enzymes; acids kill bacteria & loosen food particles Protein pepsin Peptides Muscles in stomach walls contract to churn food Makes bile for lipid digestion in small intestine Stores and releases bile into small intestine Makes enzymes for small intestine

11. SMALL INTESTINE Structure: Chemical Digestion: Mechanical Digestion/Absorption: Structure-Function Connection: LARGE INTESTINE Structure: Chemical Digestion: Mechanical Digestion/Absorption: Structure-Function Connection: RECTUM Major Function: ANUS Major Function: Long narrow tube with millions of folds (villi) and hairs (microvilli) Starch amylase Glucose Disaccharides Monosaccharides Protein trypsin Peptides Peptides peptidase Amino acids Lipids lipase Fatty acids & glycerol Bile breaks up lipid globs Villi absorb all nutrients/monomers into the bloodstream (glucose, amino acids, fatty acids…) Long tube + villi/microvilli provide a lot of surface to absorb all the nutrients. Wide tube w/ many bacteria living there Bacteria break down wastes and release vitamins Water and vitamins absorbed into bloodstream Waste is solidified and compacted Width of tube provides space for waste to build up and get compacted Release feces from the body Store digestive waste (feces) ZOOM IN ON THE SMALL INTESTINE!

12. Digestive System: Structures

13. How the Internal Organs Fit Together Image shows major digestive, respiratory, and circulatory system organs Front ViewBack View Images: http://www.turbosquid.com/FullPreview/Index.cfm/ID/270177

14. The Creative Portrayal of the Digestive System Day 1  Digestion Project Overview  Begin Digestion Project  Complete Step 1 Be specific when identifying the sources of carbon compounds in your meal.  Complete through Step 2 for the start of Monday’s class. Pay close attention to how the carbon compounds are broken down from the complex polymers to the simplest monomers that are absorbed into the blood stream. How many stages does it take for each to do this? Objectives for Class:  Describe the structures and functions of digestive system organs, and explain how they relate to each other  Explain the purpose of the Digestion Project and identify what meal you will use.

15.  Homework:  Completed rough draft of your digestion story due Wednesday at the start of class.  Do Now: (in your notebook)  What form do you think your project will take – creative writing or illustrated storybook? Why?  What ideas do you have to make it creative?  Today’s Objectives:  Follow carbohydrates, proteins, and lipids through the digestive system.  Decide on the creative form your project will take, and begin writing. Bio 9C: Monday, 11.23.09 Title: Digestion Project Work Time

16. Before moving on from Step 2:  Get 3 colored pencils  In the chart for Step 2…  Choose one color for carbs. Circle all the chemical digestion that involves carbs in that color.  Choose another color for proteins. Do the same thing.  Choose a 3 rd color for lipids. Do the same thing. Next Steps:  Organize your notes and story outline  Begin writing the story (completed rough draft due Wednesday) The Digestion Project:Day 2 The Creative Portrayal of the Digestive System

17.  Homework:  Final draft of Digestion Project due Wednesday, 12.2.09 at the start of class! Monday will be a day for last revisions and in-class work time.  Have a Happy Thanksgiving and a nice long weekend!  Do Now:  Take out your digestion project rough draft AND the packet  Turn to the Assessment Rubric on the 2 nd page and find the column for Student Assessment. Draw a line down the middle of that column and label the left side “rough draft.”  Read your rough draft and give yourself scores for each section of the rubric.  Today’s Objectives:  Follow carbohydrates, proteins, and lipids through the digestive system.  Evaluate the completeness of your rough draft and revise as necessary. Bio 9C: Wednesday, 11.25.09 Title: Digestion Project Self-Assessment and Revision

18. MOUTH Structure: Mechanical Digestion/Absorption: Chemical Digestion: Structure-Function Connection: GALLBLADDER Major Function: LIVER Major Function: STOMACH Structure: Mechanical Digestion/Absorption: Chemical Digestion: Structure-Function Connection: ESOPHAGUS Structure: Mechanical Digestion/Absorption: Chemical Digestion: Structure-Function Connection: PANCREAS Major Function:

19. ANUS Major Function: RECTUM Major Function: LARGE INTESTINE Structure: Chemical Digestion: Mechanical Digestion/Absorption: Structure-Function Connection: SMALL INTESTINE Structure: Chemical Digestion: Mechanical Digestion/Absorption: Structure-Function Connection: