1. Aim: How do different environmental factors affect the rate of photosynthesis?

2. What is needed for photosynthesis? From soil?From air?From the sun?

3. Light Energy CO 2 + H 2 O Sugars + O 2 Section 8-2 Photosynthesis: Reactants and Products Go to Section: How is the energy absorbed? 6H 2 O + 6CO 2 ----------> C 6 H 12 O 6 + 6O 2 Chloroplast

4. Why so many thylakoids? To increase surface area so ….. And more surface for light absorption We can have more enzymes for photosynthesis

5. What factors affect the rate of….? CO 2 concentration Light intensity Moisture (H 2 O) concentration Temperature

6. How does ___________ affect photosynthesis? light intensity

7. How does ________________ affect photosynthesis? CO 2 concentration

8. How does ________________ affect photosynthesis? H 2 O concentration Water

9. How does ____________ affect photosynthesis? Temperature Photosynthesis

10. So, how can we increase the rate of photosynthesis? 6H 2 O + 6CO 2 ----------> C 6 H 12 O 6 + 6O 2 enzyme

11. At which temperature would the plants most likely use the greatest amount of carbon dioxide? 1. 10°C 2. 20°C 3. 30°C 4. 40°C State one possible reason for the change in glucose production when the temperature was increased from 30°C to 40°C.

12. A valid inference based on this data is that 1.most photosynthetic organisms live below a depth of 150 centimeters 2.oxygen production increases as photosynthetic organisms move deeper in the lake 3.photosynthetic organisms respond to changing light levels 4.photosynthetic organisms move up and down to increase their rate of carbon dioxide production