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Exploring Photosynthesis: Light-Dependent and Light-Independent Reactions

Learn about the processes of photosynthesis, including where they occur, their inputs and outputs, and how solar energy is converted into ATP and NADPH.

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Exploring Photosynthesis: Light-Dependent and Light-Independent Reactions

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  1. PS I Light Dependent Reactions PS II Electron Transport System Electron Transport System

  2. e- H2O O2 Light Dependent Reactions Solar energy Solar energy ATP e- e- ATP e- NADPH PS II Electron Transport System Electron Transport System PS I

  3. Where are processes happening? Input & output? Light-dependent reactions ATP NADPH thylakoid space stroma cytoplasm intermembrane space

  4. Where are processes happening? Input & output? Light-dependent reactions Solar energy H2O ATP NADPH chloroplast thylakoid space O2 stroma cytoplasm intermembrane space

  5. H2O O2 Light-dependent reactions light NADPH ATP

  6. Where are processes happening? Input & output? Solar energy Light-dependent reactions H2O ATP NADPH chloroplast O2 thylakoid space CO2 Light-independent reactions stroma cytoplasm C6H12O6 intermembrane space

  7. H2O O2 Light-dependent reactions light ADP NADPH ATP NADP+ Light-independent reactions (Calvin (C3) Cycle) CO2 glucose

  8. Light Independent Reactions Calvin (C3) Cycle: energy from light dependent reactions H2O CO2 1 PGA RuBP NADPH In the stroma NADP+ 2 ADP ATP 3 ADP ATP G3P Glucose

  9. Light Independent Reactions Calvin (C3) Cycle: H2O CO2 energy from light dependent reactions 1 PGA RuBP NADPH In the stroma NADP+ 2 ATP 3 ADP ADP G3P ATP Glucose

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