Photosynthesis Photo:Conversion of light energy into chemical energy (ATP) Light-dependent (light)reactions Synthesis:Fixing carbon into organic molecules Light-independent (dark)reaction,Calvin-Benson cycle 。Oxygenic: 6 CO2+12 H2O Light energy>C6H12O6+6 O2+6 H2O 。Anoxygenic: CO2+2 H2S Light energy>[CH2O]+2A+H2O • Photo: Conversion of light energy into chemical energy (ATP) • Light-dependent (light) reactions • Synthesis: Fixing carbon into organic molecules • Light-independent (dark) reaction, Calvin-Benson cycle • Oxygenic: 6 CO2 + 12 H2O + Light energy → C6H12O6 + 6 O2 + 6 H2O • Anoxygenic: CO2 + 2 H2S + Light energy → [CH2O] + 2 A + H2O Photosynthesis