Photosynthesis The Light & Dark Reactions Carbon Cycle.

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Presentation transcript:

Photosynthesis The Light & Dark Reactions Carbon Cycle

Photosynthesis Complex process that actually occurs in 2 stages Carbon Cycle

Light Reactions of Photosynthesis Requires light H2O required Occurs in the grana Converts ADP molecules into ATP

Light Reactions of Photosynthesis Water (H2O) molecules are split Result H2 + O 2

Light Reactions of Photosynthesis O2 is released into the atmosphere H will bond to NADP to form NADPH

Photosynthesis Diagram LIGHT REACTION (GRANA) 1. LIGHT 2. H2O 5. ATP 6. NADPH 3. Grana 4. O2

Dark Reaction of Photosynthesis ATP & NADPH from light reaction are used in the dark reaction Dark reactions do not require light Occurs in the stroma Requires carbon dioxide

Dark Reaction of Photosynthesis Calvin cycle (Carbon Cycle) synthesizes glucose

Dark Reaction of Photosynthesis ATP from the light reactions drives the Calvin cycle ATP  energy + ADP + P NADPH releases H  NADP H used to form glucose

Dark Reaction of Photosynthesis ADP & NADP returned to grana for light reaction

Photosynthesis Diagram LIGHT REACTION (GRANA) DARK REACTION (STROMA) 1. LIGHT 2. H2O 9. CO2 5. ATP 6. NADPH 10. Carbon Cycle 7. ADP 3. Grana 8. NADP 4. O2 11. C6H12O6

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