BIOLOGY STUDY MATERIALS

PHOTOSYNTHESIS Def- Photosynthesis is a process in which green plants manufacture food (carbohydrate) from simple inorganic materials like CO 2 and H 2 O with the help of sunlight and chloroplast with the evolution of O 2 as a byproduct. Overall equation of Photosynthesis –                                                                               Light                                  6CO 2 + 12H 2 O    -------------------> C 6 H 12 O 6 + 6H 2 O + 6O 2                                                                         Chlorophyll Entire process of photosynthesis is completed within chloroplast. CO 2 and H 2 O are the raw materials for photosynthesis. Mechanism of photosynthesis is completed in two major steps i.e. light reaction and dark reaction.  During light reaction solar energy is trapped and covered into chemical energy as well as water is oxidized to release oxygen. While in dark reaction CO 2 is reduced to sugar using chemical energy.