1. Photosynthesis AP Biology

2. The Equation 6CO 2 + 6H 2 O + light  C 6 H 12 O 6 + 6O 2 Chlorophyll required Water both consumed & produced

3. Chloroplasts Site of photosynthesis Structure Double membrane Thylakoids Granum (Stack of thylakoids) Stroma

4. Chloroplasts Relating structure to function Thylakoid space Allows for accumulation of H+ Segregates H+ from rest of organelle

5. Chloroplasts Relating structure to function Thylakoid membrane Contains photosystems & ETC

6. Chloroplasts Relating structure to function Large number of thylakoids Large surface area Large number of ETC and photosystems

7. Chloroplasts Relating structure to function Inner membrane Segregates chemical of Calvin- Benson cycle from cytosol

8. Photosynthesis

9. Light Reactions

10. Photosystem II captures light energy P680

11. Light Reactions Light energy passed to reaction center P680

12. Light Reactions 2 e- boosted to higher energy state P680

13. Light Reactions 2 e- passed through ETC to Photosystem I H+ gradient created; ATP produced P680 ATP P700

14. Light Reactions Photosystem I captures light energy Passes it to reaction center P680 P700 ATP

15. Light Reactions e- from P700 boosted to higher energy state P680 P700 ATP

16. Light Reactions e- move through ETC e- accepted by NADP+ P680 P700 NADP+ ATP

17. Light Reactions 2e- + 1H+ + NADP+  NADPH P680 P700 NADP+ NADPH ATP

18. Light Reactions Water split e- from water replace lost e- from P680 O 2 leaves P680 P700 NADPH H2OH2O O2O2 H+ ATP

19. Calvin Cycle

20. Rubisco fixes 6CO 2 to 6RuBP (5-C) RuBP = ribulose biphosphate 3PG (3-C) produced 3PG = 3-phosphoglycerate

21. Calvin Cycle 3PG converted to 12 G3P G3P = glyceraldehyde 3- phosphate 12 ATP used 12 NADPH used

22. Calvin Cycle 2 G3P exit cycle & used to make glucose Glucose used to make sugars & other carbohydrates

23. Calvin Cycle 10 G3P (3-C) used to make 6 RuBP (5-C) 6 ATP used