Light-Dependent Reactions

• Light-dependent reactions

  Happen in the thylakoids (little compartments in the chloroplast that contain pigment)
• Light-dependent reactions

  1. Photons from sunlight strike chlorophyll and accessory pigments

  2. Electrons within these pigments get excited

  3. Water (H2O) is oxidized, releasing Oxygen (O2)

  4. The freed electrons are transferred to ATP and NADPH
• Light-dependent reactions produce oxygen as a product
• Light-dependent reactions produce ATP and NADPH which are both needed for light-independent reactions
• The photosynthesis equation is 6 CO2 + 6 H20 -> C6H1206 + 6 O2
• Location of light-dependent reactions

  In the thylakoid discs within chloroplasts