Photosynthesis, Cellular Respiration, and the Carbon Cycle

1. What goes where? Match the reactants and products of photosynthesis and cellular respiration Photosynthesis reactants CO2 H2O Light Energy Photosynthesis products O2 C6H12O6 Cellular Respiration reactants C6H12O6 O2 Cellular Respiration products CO2 H2O ATP 2. Write and label BALANCED equations (the letters and numbers) for cellular respiration and photosynthesis below. Use a different font color, size, italics, or underline to identify the carbon dioxide in each equation. Labels to use: reactant, product, glucose, oxygen, carbon dioxide, water, ATP, photosynthesis, cellular respiration Draw a balanced cycle between photosynthesis and cellular respiration 3. Write a grammatically correct sentence that compares the reactants and products of photosynthesis with the reactants and products of respiration. Be ready to share your sentence with the class.You can use the answer record function to speak your answer instead of typing. Energy - where is it? 4. Using the picture above, answer these questions: A) What do the lines between the circles represent? B) On the left side, what is the energy doing? C) Is there more energy on the left side of the picture or the right side? Explain your answer. 5. As a group carefully consider and discuss the following statement: “Plants can survive on their own, because they make their own food. Animals can’t survive on their own but need plants for survival.” A) Do you agree with this statement? B) Why or why not? C) Can you come to a consensus as a group? Be ready to discuss your group’s response to this statement. 6. As a group, make a quick list of the foods that you ate during your last meal. Hypothesize what would happen to the supply of those foods if the sun’s energy was no longer available. 7. Explain how the energy used by an athlete during a football game comes from the energy of sunlight. 8. In the diagram, click on the blue dot to type in the text box whether the process is photosynthesis or cellular respiration (A, B, C, or D) 9. When matter from plants and animals decay (rot), microorganisms responsible for the decomposition process respire. Knowing this information, do you need to add or change any of your answers on the model? Explain and add change as needed. 10. Look at the model above. A) List any chemical processes other than photosynthesis and respiration that are taking place in the model. B) Are any of your answers due to human activity? Explain. 11. How would the burning of fossil fuels upset the balance of the carbon dioxide cycle? 12. Deforestation is another example of human activities that affects the carbon dioxide cycle.Explain how the cutting down and burning of trees would affect this cycle. Use the following links to help you research your answerDeforestationDeforestation video 13. Ethanol is one example of alternative fuels for powering our cars and trucks. Ethanol can be produced in different ways, but most often by microorganisms acting on plant materials such as corn. Advocates argue that burning ethanol would not alter the net emission of CO2, even though when ethanol is involved in combustion it produces CO2. What are the pros and cons of producing and burning ethanol? Use the following links to help you write your answerFriends of the EarthBiofuels Explained 14. Electricity consumption is a huge producer of atmospheric carbon dioxide because much of the USA’s electricity is produced in coal burning power plants. What are three other ways that electricity can be produced that would NOT increase atmospheric carbon dioxide? Which of these does your group think holds the most promise for the future? Use the links provided to help you research your answer.Electricity in the USWhere does electricity come from? 15. Draw your own carbon cycle Using the information you have learned, draw your own carbon cycle. Make sure you include: producers, consumers, decomposers, water, sunlight, and at least 3 activities that would affect the carbon cycle. Label all of your components. DO NOT COPY ANY OTHER CARBON CYCLE IMAGES THAT YOU HAVE SEEN 16. Thinking about the carbon cycle, what are some things that you could do to decrease your impact on the carbon cycle?