in photosynthesis the carbon in co2 is initially fixed to 3 - phosphoglycerate.
in photosynthesis the carbon in co2 is initially fixed to what molecule?
3 - phosphoglycerate
Na
Na
the first photosynthetic organisms probably evolved early in the evolutionary history of life and most likely used reducing agents such as hydrogen or electrons, rather than water. there are three major metabolic pathways by which photosynthesis is carried out: c photosynthesis, c photosynthesis, and cam photosynthesis. c photosynthesis is the oldest and most common form. c3 is a plant that uses the calvin cycle for the initial steps that incorporate co2 into organic material. c4 is a plant that prefaces the calvin cycle with reactions that incorporate co2 into four-carbon compounds. cam is a plant that uses crassulacean acid metabolism, an adaptation for photosynthesis in arid conditions. c4 and cam plants have special adaptations that save water.
evolution of photosynthesis