What is the function of the Calvin cycle in photosynthesis?
Photosynthesis is the process by which certain organisms such as plants, algae and microbes make food from sunlight, water and carbon dioxide. The Calvin cycle is the portion of the process that fixes carbon dioxide into sugar.Photosynthesis ReactionThe overall reaction of photosynthesis produces one sugar molecule for the organisms and six oxygen molecules. These are released from six carbon dioxide molecules, six water molecules and sunlight.ChloroplastsIn plants and algae, photosynthesis occurs in specialized structures within the cell called chloroplasts. Chloroplasts contain stacks of membranes that contain the pigments and enzymes required for photosynthesis.Light ReactionsThe first phase of photosynthesis generates a proton gradient across a membrane using energized electrons. The electrons are energized by sunlight in photosystems, complex structures of pigments with chlorophyll as the central pigment. The proton gradient is then used to create ATP, a molecule with high energy