1. Refer to Model 1.
a. In what cell organelle does photosynthesis occur?
b. What are three reactants (starting materials) needed for photosynthesis?
c. What are two products (ending materials) of photosynthesis?
2. Refer to Model 1.
a. In what cell organelle does cellular respiration occur?
b. What are two reactants needed for cellular respiration?
c. What are three products of cellular respiration?
3. What four substances are recycled during photosynthesis and respiration?
4. What is the one component in photosynthesis that is not recycled and must be constantly available?
5. Are chloroplasts found in most plant cells? Explain.
6. Are mitochondria found in most plant cells? Explain.
7. Are chloroplasts found in animal cells? Explain.
8. Are mitochondria found in animal cells? Explain.
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.
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.
11. 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.
12. Explain how the energy used by an athlete during a football game comes from the energy of sunlight
