Sugar and Carbon - The photosynthesis cycle allows plants to convert carbon dioxide into oxygen. Find out how the photosynthesis cycle converts carbon dioxide to oxygen. The light-independent reactions of photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose. These reactions occur in the. Dark Reaction | C-4 Pathway | The Carbon Cycle | Learning Objectives | Terms. Calvin and his many associates mapped the complete path of carbon in photosynthesis. carbon dioxide plays a big role in the carbon cycle. Plants take in co2 and turns it into energy and material to grow so the co2 becomes the plant. The simple carbon sugars produced by photosynthesis are then used in the forming of other organic compounds. The carbon reduction cycle is known as the Calvin. Human Impacts: Fossil Fuels. In the natural carbon cycle, there are two main processes which occur: photosynthesis and metabolism. During photosynthesis, plants use. This cycle of photosynthesis and respiration maintains the balance of carbon dioxide and oxygen on earth. Photosynthesis: The Carbon Cycle. The primary source of carbon/CO2 is outgassing. there has been more oxygen put into the atmosphere and carbon dioxide removed by photosynthesis. Carbon, the fourth most abundant element in the universe, moves between the atmosphere, oceans, biosphere, and geosphere in what is called the carbon cycle. Carbon Cycle - Photosynthesis: Photosynthesis is a complex series of reactions carried out by algae, phytoplankton, and the leaves in plants, which utilize.