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NOTE TO INSTRUCTOR:

Explore the processes of photosynthesis and cellular respiration to understand the carbon and nitrogen cycles. Assign students specific roles in the processes and have them arrange themselves to match the equations. Create a story following a carbon molecule through both processes.

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NOTE TO INSTRUCTOR:

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  1. NOTE TO INSTRUCTOR: If you have a class larger than 26 you may need to add additional roles – e.g. you could have a panel that verifies in the equations formed are correct. If you have a class smaller than 26 you may need to have some students take multiple atom cards – e.g. instead of giving just 1 hydrogen, give students 2 hydrogen. If students do well arranging themselves you could increase difficulty but having them arrange themselves without the equation being held by you. Instead just call out the process. Alternatively you could call out a specific part of the equation for them to do (Photosynthesis Reactants).

  2. Description: Goals: Explain carbon and nitrogen cycles. Examine how interactions between a species and its environment define a species niche. Cellular Respiration vs. Photosynthesis: Part 1 Learn the process of photosynthesis and cellular respiration by assigning students a particular molecule in the process.

  3. Objectives: Day 12 Recognize the photosynthesis equation is basically the respiration equation “backwards.” Realize that the very same carbon molecules that heterotrophs breathe out are the carbon molecules that make up the backbone of the glucose molecule. List and Identify the molecules used in photosynthesis and respiration as reactants and products.

  4. Warm-Up Questions: 1. Write the equations for photosynthesis. 2. Write the equation for respiration. Answers: 1. 6CO2 + 6H2O + Energy = C6H12O6 + 6O2 2. C6H12O6 + 6O2 = 6CO2 + 6H2O + Energy

  5. Warm-Up Questions: • What is the molecule that gives plants Carbon? • What is the molecule that gives animals energy? • What is the “waste” product of photosynthesis? • What is the waste products of respiration? Answers: • CO2 • C6H12O6 • O2 • CO2 & H2O

  6. Today’s Overview Each student will be assigned a part in the process of photosynthesis and cellular respiration. As a class you will be required to look at the equation for these processes and arrange yourself to match them. Once you have your role, wait for further instructions.

  7. A day in the life of a… Now that you are familiar with photosynthesis and cellular respiration processes, you will design a story that follows a carbon molecule through both processes. You are encouraged to be creative and must include at least one autotroph and one heterotroph in your story. (if not finished in class this is homework!)

  8. Think about it… Exit Ticket: What were the major two processes investigated today? What natural cycle(s) are they part of?

  9. Objectives: Day 12 Recognize the photosynthesis equation is basically the respiration equation “backwards.” Realize that the very same carbon molecules that heterotrophs breathe out are the carbon molecules that make up the backbone of the glucose molecule. List and Identify the molecules used in photosynthesis and respiration as reactants and products.

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