Xin Xi March 13, 2008. Basis 1. Photosynthesis (gross photosynthesis minus photorespiration) C3/C4/ CAM (Crassulacean Acid Metabolism) 2. Ecosystem Respiration.
Evolution of the alternate photosynthetic pathways Both C 4 and CAM pathways have evolved many times in many plant families. C 4 While there are many dicot.
