1. Photosynthesis CAPTURING THE ENERGY IN LIGHT All organisms use energy for the functions of life. Many organisms use energy directly from sunlight. The energy transfer of Photosynthesis is the capturing of energy in light and storing it within organic compounds.

2. CELLULAR RESPIRATION CELLULAR RESPIRATION is the release of energy stored in the organic compounds Both Autotrophs and Heterotrophs Perform Cellular Respiration.

3. EQUATION FOR PHOTOSYNTHESIS 6CO 2 + 6H 2 O + Light Energy Light Energy C 6 H 12 O 6 + 6O 2 CARBON DIOXIDE WATER GLUCOSE OXYGEN

4. EQUATION FOR Cellular RESPIRATION C 6 H 12 O 6 + GLUCOSE 6O 2 OXYGEN 6CO 2 + CARBON DIOXIDE 6H 2 O + ENERGY WATER ATP

5. 16. Photosynthesis involves a COMPLEX SERIES of Chemical Reactions, in which the PRODUCT of One Reaction is Consumed in the Next Reaction. 17. A Series of Reactions linked in this way is referred to as a BIOCHEMICAL PATHWAY. 18. Autotrophs use biochemical pathways of photosynthesis to manufacture organic compounds from Carbon Dioxide, CO2, and Water. During this conversion, molecular OXYGEN, O2, is Released.

6. 19. Some of the energy stored in organic Compounds is Released by Cells in another set of Biochemical Pathways, Known as CELLULAR RESPIRATION. 20. Both Autotrophs and Heterotrophs Perform Cellular Respiration. 21. During Cellular Respiration in Most Organisms, Organic Compounds are Combined with O2 to Produce ADENOSINE TRIPHOSPHATE or ATP, Yielding CO2 and Water as Waste Products. CELLULAR RESPIRATION

7. 22. The PRODUCTS of Photosynthesis, ORGANIC COMPOUNDS and O2, are the REACTANTS used in CELLULAR RESPIRATION. 23. The WASTE PRODUCTS of CELLULAR RESPIRATION, CO2 and WATER, are the REACTANTS used in PHOTOSYNTHESIS.

8. Photosynthesis- Respiration Cycle