86.During dark please of photosynthesis, ____ is oxidized and ___ is reduced A. CO 2 & H 2O B. H 2O & CO 2 C. H2O & NADP D. NADPH 2& CO 2
Option D Photosynthesis occurs in two phases-light reaction and dark reaction. During light reaction water undergoes photolysis releasing oxygen and reduced NADPH2 and ATP molecules are synthesized. During the dark reaction, NADPH2 and ATP are used to reduce carbon dioxide into sugars.