1. The energy for this reaction comes from sunlight.
2. Light reactions: H₂O → O₂ + 2H⁺ + 2e⁻
Calvin cycle: CO₂ + 2H⁺ + 2e⁻ → (CH₂O)
3. Photosynthesis takes place in the chloroplasts, which contain the organelles thylakoids and stroma.
4. The plant pigment most responsible for capturing light energy is chlorophyll a.
5. Chloroplasts capture energy from sunlight to produce ATP and NADPH, which are then used to convert carbon dioxide into glucose during the Calvin cycle.
6. In the diagram:
- Light-dependent reactions occur in the thylakoid membrane, producing ATP and NADPH.
- The Calvin cycle occurs in the stroma, using ATP and NADPH to fix CO₂ into glucose.
- Oxygen is released as a byproduct of water splitting in the thylakoids.
- Glucose is produced and exported from the chloroplast.
Parent Tip: Review the logic above to help your child master the concept of photosynthesis diagrams worksheet.
