1. Photosynthesis

2. Chloroplast Structure

3. Photosynthetic Reactions 1.Light dependent reactions 2.Light independent reactions (Calvin Cycle)

4. Light Reactions Light dependent reactions take place in the thylakoid membrane, with the pigment chlorophyll absorbing sunlight

5. Light Reactions 1. Energy from sunlight breaks water into H +, oxygen (O 2 ) and electrons (e - ).

6. Light Reactions 2. H + and e - are used to produce energy carrying molecules NADPH and ATP

7. Light Independent Reactions Light independent reactions occur in the stroma

8. The Calvin (C 3 ) Cycle

9. CO 2 enters the leaf through the stomates

10. The Calvin (C 3 ) Cycle ATP and NADPH (from the light reactions) power the creation of three carbon chains

11. The Calvin (C 3 ) Cycle ADP and NADP + return to the light reactions in the thylakoid to be “recharged”

12. Formation of Glucose 3-carbon chains from the C 3 cycle join to form the six carbon molecule, glucose (or other molecules required by the plant) C-C-C + C-C-C  C-C-C-C-C-C Glucose C 6 H 12 O 6

13. Net Equation for Photosynthesis 6 CO 2 + 6 H 2 O      C 6 H 12 O 6 + 6 O 2 light, enzymes