C H O N P S. Name : Color the Elements on the Periodic Table as listed below
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1 Name : Unit 9: and Changes in Digestion (if found, please return to Room 714) 7.6A Organic Compounds Identify that organic compounds contain CHONPS. Organic Compounds contain what? C H O N P S Color the Elements on the Periodic Table as listed below Carbon = shade with pencil Hydrogen = white (outline) Nitrogen = dark blue Oxygen = red Sulfur = yellow Phosphorus = purple Organic Compounds MUST have and bonded with and commonly too!
2 Organic vs. Inorganic Organic Molecules Inorganic Molecules 7.4A Tools (YouTube video ) List the tools used in the Benedict Solution Demonstration. Tools Use Why are the molecules above ORGANIC? 7.3C ADVANTAGES/LIMITATIONS of MODELS Which piece of equipment is REQUIRED for investigations (using glass, chemicals, and heat)? What does a molecule model represent? How do models differ from an actual molecule? Why this piece?
3 7.7B Energy Transformation Chicken Liver Investigation 1. How does cutting the chicken or liver represent digestion? 2. How did placing the chicken or liver in hydrogen peroxide represent digestion? 3. Explain what happened to the energy in the investigation? 4. What type of energy was released? 7.6C Breakdown of Molecules Recognize how large molecules are broken down into smaller molecules such as carbohydrates are broken down into sugars. Macromolecules are Organic Compounds Carbohydrates break down into Examples Proteins break down into Examples Lipids break down into Examples 5. Illustrate the energy transformation? What safety equipment was used during the Chicken/Liver Investigation?
4 7.6B Energy Transformation Changes in the Digestive System Read the Handout: and Changes in the Digestive System. Complete the Venn Diagram using ALL words that COMPARE and CONTRAST the Changes in the Digestive System. PHYSICAL CHANGES CHEMICAL CHANGES TABLET INVESTIGATION What differences did you observe between the two tablets? Which tablet dissolved faster? Why do you think that tablet was faster? Crushing the tablet could simulate what organs of the digestive system? What kind of change took place when the tablet was crushed? What kind of change took place when the tablet dissolved in water? What signs indicated the type of change that took place when the tablet dissolved? Using the Reference Sheet, identify organs in the digestive system that might have the same effect on your food as the water did on the tablet. PLAY DOUGH INVESTIGATION
5 Structure Function (s) Mouth Esophagus Stomach Small Intestine Large Intestine HIGHLIGHT Type of Digestion HIGHLIGHT Type of Change Record your observations of the change of the play dough. Classify this as a chemical or physical change. Justify your answer with 2 signs of the change in the play dough. and. Using the Reference Sheet, identify organs in the digestive system that might have the same effect on your food as you did on the play dough. HIGHLIGHT THE STATEMENTS DESCRIBING CHEMICAL DIGESTION Chewing a saltine. Saliva breaking the cracker down into molecules of glucose. Fat molecules separated into smaller molecules in your small intestine. Your tongue breaking pieces of hamburger apart. Excess water being removed by your large intestine. Pepsin (an enzyme) in your stomach breaking meat into amino acids. CRACKER INVESTIGATION Observation of cracker: Describe what is happening in your mouth before you put the item in. What was causing this change? Is it chemical or physical? Describe what is happening in your mouth as you begin to chew. What was causing this change? Is it chemical or physical? Record the journey of your item as it leaves your mouth:,,,
6 Pick THREE colored pencils. Complete the KEY for the Digestive System Diagram. Changes Changes Both ( and ) 7.7B Energy Transformation ILLUSTRATE the transformation of energy within an organism in the correct box. l Energy to Thermal Energy Energy to Energy Energy to Energy
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