Photosynthesis and Respiration

Wh y? Photosynthesis and cellular respiration are important cell energy processes. They are connected in ways that are vital for the survival of almost all forms of life on earth. In this activity you will look at these two processes at the cellular level and explore their interdependence. Model 1 – Comparison of Photosynthesis and Respiration Photosynthesis: 6CO2 + 6H2O + energy C6H12O6 + 6O2 Sunlight energy Chloroplast O2 CO2 + H2O Mitochondri on Glucose energy (ATP) 1. Refer to Model 1. O2 Respiration: C6H12O6 + 6O2 6CO2 + 6H2O + energy a. In what cell organelle does photosynthesis occur? CHLOROPLAST b. What are three reactants needed for photosynthesis? LIGHT + CO2 + H2O c. What are two products of photosynthesis? GLUCOSE and OXYGEN (C6H12O6 + O2) 2 POGIL™ Activities for High School 2. Refer to Model 1. a. In what cell organelle does cellular respiration occur? MITOCHONDRION b. What are two reactants needed for cellular respiration? GLUCOSE and OXYGEN (C6H12O6 + O2) c. What are three products of cellular respiration? CO2 + H2O + ATP’s 3. What four substances are recycled during photosynthesis and respiration? CO2, H2O, C6H12O6 , O2 4. What is the one component in photosynthesis that is not recycled and must be constantly available? LIGHT 5. Are chloroplasts found in most plant cells? Explain. MOST, BECAUSE MOST CARRY OUT PHOTOSYNTHESIS. NOT ALL-REMEMBER ONIONS? 6. Are mitochondria found in most plant cells? Explain. YES, ALL CELLS CARRY OUT CELLULAR RESPIRATION. 7. Are chloroplasts found in animal cells? Explain. NO, ANIMALS ARE HETEROTROPHS AND DO NOT CARRY OUT PHOTOSYNTHESIS. 8. Are mitochondria found in animal cells? Explain. YES, ALL CELLS CARRY OUT CELLULAR RESPIRATION. 9. 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. THE REACTANTS NEEDED FOR CELLULAR RESPIRATION ARE PRODUCED DURING PHOTOSYNTHESIS; THE PRODUCTS FROM CELLULAR RESPIRATION ARE USED AS REACTANTS IN PHOTOSYNTHESIS. SUNLIGHT ENERGY IS REQUIRED FOR PHOTOSYNTHESIS, WHILE CELLULAR RESPIRATION PRODUCES CHEMICAL ENERGY IN THE FORM OF ATP. 10. 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.” Do you agree with this statement? Why or why not? Can you come to a consensus as a group? Be ready to discuss your group’s response to this statement.