Light Phase

• The light phase takes place in the grana of chloroplasts
• Radiant energy from the sun is absorbed by chlorophyll molecules in the thylakoids
• Energy transformation takes place and radiant energy is transformed into chemical energy
• Chemical energy is used for two processes

  Photolysis:

  Water molecules are split into Hydrogen atoms (transferred to dark phase) and oxygen atoms (released into atmosphere as a gas)
• The energy carrier ATP is formed and it is used again in the dark phase