\tC3 PlantsC4 PlantsThe first stable intermediate product is 3- carbon acid:- phosphoglyceric acid.The first stable intermediate product\xa0is a 4 carbon acid:- oxaloacetate (which is then reduced to malate)Photosynthetic functions occur only in mesophyll cells – on the surface of the leavesPhotosynthetic functions occur in mesophyll and bundle sheath cells.C3 requires cool and wet environments.\xa0C4 requires tropical and dry environments.95% of the green plants are C3 plants.5% of the green plants are C4 plants.Examples include rice, wheat, oats, barley, cotton, peanuts, tobacco, sugar beets, soybeans and spinachExamples include Maize,\xa0Sugarcane, pearl millet,\xa0sorghum.Leaves of these plants DO NOT show Kranz anatomy.Leaves of these plants show Kranz anatomy.\t