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9B – NEW Seats! Front of room

9B – NEW Seats! Front of room. Aser. Julian. Nancy. Harold. Jamesley. Tom. Zuri. Israel. Patrick. Leslie. Emily. Grace. Leela. Emperor. Larissa. Alex. Trevon. Natalie G. McHenley. Natalie N. Ricardo. Whitney. Andre.

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9B – NEW Seats! Front of room

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  1. 9B – NEW Seats! Front of room Aser Julian Nancy Harold Jamesley Tom Zuri Israel Patrick Leslie Emily Grace Leela Emperor Larissa Alex Trevon Natalie G McHenley Natalie N Ricardo Whitney Andre

  2. Bio 9B: Thursday, 11.18.10Title: Quiz #4: Carbon Compounds and Enzymes • Homework: • Complete the reading assignment for: 38.2, pages 978-984. • Pass Late Work to the left • McMush Revisions and Food Poster Revisions Due Monday! • Do Now: • Clear your desks and get ready for the quiz! • Objectives for Class: Demonstrate understanding of: • Describe the structures and functions of carbs, proteins, and lipids. • Identify the sources of carbs, proteins, and lipids in foods. • Explain the difference between reactants and products in a chemical reaction • Explain how an enzyme’s structure fits it function • Explain why enzymes are important for chemical reactions

  3. Quiz #4: Carbon Compounds & Enzymes • No talking • If you have a question or need something from your bag, please raise your hand and ask permission • When done, please put your quiz face down on the kidney table in the appropriate pile (version A or version B). • Start Reading Assignment: 38.2, pages 978-984. Answer questions 1, 2, 4 and 5. DO NOT answer question 3 yet • Objectives for Class: • Describe the structures and functions of carbs, proteins, and lipids. • Identify the sources of carbs, proteins, and lipids in foods. • Explain the difference between reactants and products in a chemical reaction • Explain how an enzyme’s structure fits it function • Explain why enzymes are important for chemical reactions

  4. Bio 9B: Thursday, 11.18.10 Title: Digestive System: Structures & Functions • Homework: • Complete Section 38-2: Questions 1-5 - notes on the structures & functions of all digestive organs (we’ll start this in class) • 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

  5. Structure and Function of Objects Object #1: • 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? • 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. Structure and Function of Objects • 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

  7. Structure and Function of Objects • 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

  8. Discuss this Past Activity • 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 • 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

  9. Small Group Activity • Each group starts with a different organ (mouth, esophagus, stomach, small intestine, large intestine) • Group procedure: • Get textbooks for each person • Read the section on your organ (silently or quietly aloud to the group) (on pgs. 978-985) • Each person take notes on the following: • Describe the structure of the organ • Describe the functions of the organ • How does its structure help it to perform its functions? • HW: Complete this for the remaining 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

  10. Bio 9B: Monday, 11.22.10 Title: Digestive System: Structures & Functions • Homework: • Digestion Review Questions • Pass HW to the left • Pass Revised Food Poster and McMush Labs to the left. • Then… pass in late work • 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

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

  12. Bio 9C: Tuesday, 11.23.10 Title: Digestion Project Work Time • Homework: • Complete up to step 3 on the digestion project by Monday! • 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: • Follow carbohydrates, proteins, and lipids through the digestive system. • Decide on the creative form your project will take, and begin writing.

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

  14. Digestive System: Structures

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

  16. The Creative Portrayal of the Digestive System The Project: Follow the journey of some food through the digestive system from the perspective of the food. • Choose a food that contains the following organic compounds: carbohydrates, protein, and lipids. • Trace the path of that food as all of its components are digested.  You will portray this journey in ONE of TWO ways (you choose ONE): • Creative Writing: Write a creative story from the perspective of the food. Describe your journey through the digestive system. • Illustrated Storybook: Combine the above option with some illustrations to trace the path of the food through the digestive system. You might want to describe each major component of the digestive system on a different page (Hint: a great way to do this would be to create the story in PowerPoint, so that each slide is a page). Your project should illustrate the following big ideas: • The relationship between structure and function in the human digestive system • The process of breaking down food into small, building block molecules • The importance of enzymes in metabolism

  17. 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 up to Step 3 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.

  18. The Digestion Project:Day 1The Creative Portrayal of the Digestive System 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 carbsin that color. • Choose another color for proteins. Do the same thing. • Choose a 3rd color for lipids. Do the same thing. Next Steps: • Organize your notes and story outline • Begin writing the story (completed rough draft due Tuesday)

  19. Bio 9B: Monday, 11.23.09 Title: Digestion Project Self-Assessment and Revision • Homework: • Final draft of Digestion Project due tomorrow at the start of class! • Optional – Bring a snack related to your project for the class to share. We will watch a film tomorrow and snacks will be allowed IF there’s enough to share with the class. • Do Now: • Take out your digestion project rough draft AND the packet • Turn to the Assessment Rubric on the 2nd 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.

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

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

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

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

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