energy transfers

• Photosynthesis is a two stage process: LDR and LIR
• The LDR occurs on the thylakoid membranes and grana and the LIR occurs in the stroma
• LDR is the first stage and requires light
• light energy and water are used to create ATP and reduced NADP which are needed for the light-independent stage
• This occurs in four stage:

  1. Photoionisation of chlorophyll