1. Review 1. Name the 3 requirements for photosynthesis. 2. Green plants absorb what wavelength (color) of light? 3. What pigment is found in chloroplasts that helps absorb light? Bonus Bonus What is the simplified equation for photosynthesis? What is the simplified equation for photosynthesis?

2. Use the Force: Light and Dark Reaction of Photosynthesis!

3. Photosynthesis Overview Chloroplast H2OH2O O2O2 Sugars CO 2 Light- Dependent Reactions Calvin Cycle NADPH ATP ADP + P NADP + Chloroplast Light

4. Pigments of Photosynthesis

5. Absorption of light Absorption of Light by Chlorophyll a and Chlorophyll b VBGYOR Chlorophyll b Chlorophyll a

7. Light Energy Chloroplast CO 2 + H 2 OSugars + O 2 Photosynthesis: Reactants and Products Go to Section:

9. C h e m i c a l E q u a t i o n f o r P h o t o s y n t h e s i s 6 C O 2 + 6 H 2 O 6 C O 2 + 6 H 2 O C 6 H 1 2 O 6 + 6 O 2

10. Light Reactions Needs light to occur Needs light to occur Energy of sunlight is captured and used to make energy storing compounds (batteries) Energy of sunlight is captured and used to make energy storing compounds (batteries) Occurs in the thylakoid membrane of the chloroplast Occurs in the thylakoid membrane of the chloroplast Membrane has pigments called photosystems (I, II) that capture light Membrane has pigments called photosystems (I, II) that capture light NADPH and ATP are made NADPH and ATP are made Water is broken down and oxygen is released Water is broken down and oxygen is released

11. Hydrogen Ion Movement Photosystem II Inner Thylakoid Space Thylakoid Membrane Stroma ATP synthase Electron Transport Chain Photosystem IATP Formation Chloroplast Light Dependent Reaction

12. Dark Reactions Can happen anytime, not only in the dark Can happen anytime, not only in the dark Uses energy stored in ATP and NADPH to produce glucose Uses energy stored in ATP and NADPH to produce glucose Takes place outside the thylakoid in the stroma Takes place outside the thylakoid in the stroma Calvin cycle “fixes” carbon into different configurations Calvin cycle “fixes” carbon into different configurations CO 2 is broken down and glucose is released CO 2 is broken down and glucose is released

13. Calvin Cycle CO 2 Enters the Cycle Energy Input 5-Carbon Molecules Regenerated Sugars and other compounds 6-Carbon Sugar Produced

14. Fill in the Boxes below. What you need What you get Light Reactions (Light dependent) Dark Reactions (Light independent) light, ADP, NADP +, H 2 O ATP, NADPH, CO 2 ATP, NADPH, O 2, H + glucose, ADP, NADP +

15. Photosynthesis Overview Chloroplast H2OH2O O2O2 Sugars CO 2 Light- Dependent Reactions Calvin Cycle NADPH ATP ADP + P NADP + Chloroplast Light

16. Photosynthesis includes of take place in takes place in uses to produce use Light- dependent reactions Calvin cycle Thylakoid membranes StromaNADPH ATP Energy from sunlight ATPNADPHO2O2 Chloroplasts High-energy sugars Concept Map Go to Section:

17. classwork Work on handout Work on handout Student led discussion Student led discussion HW HW SA 8-3 SA 8-3