Photosynthetic reaction (4.4.1.1) — AQA GCSE Biology Revision Notes

Revision notes for AQA GCSE Biology specification point 4.4.1.1, Photosynthetic reaction.

Photosynthesis

  • PHOTOSYNTHESIS is the process where plants convert CARBON DIOXIDE and WATER into GLUCOSE and OXYGEN using LIGHT ENERGY.
  • It occurs in CHLOROPLASTS within plant cells, which contain the pigment CHLOROPHYLL that absorbs light.
  • PHOTOSYNTHESIS is an ENDOTHERMIC reaction, meaning it absorbs energy from the environment.

Photosynthesis 

Equation:

  • Word equation: CARBON DIOXIDE + WATER → GLUCOSE + OXYGEN
  • Symbol equation: 6CO₂ + 6H₂O (light) → C₆H₁₂O₆ + 6O₂

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