Photosynthesis is the biological process by which light energy, usually from the sun, is converted to chemical energy in the form of glucose (sugar) and oxygen. Photosynthetic organisms are any organisms capable of performing this process. Plants, algae, and cyanobacteriaAlso known as blue-green algae, cyanobacteria are single-celled microorganisms capable of producing are the only organisms classified as photosynthetic. The underlying principles of this efficient energy conversion reaction are exploited in various biotech applications, allowing glucose to be used as a green feedstockFeedstocks are the raw materials used in a manufacturing process to produce a final product. The typ alternative in processes that conventionally rely on petroleum-based feedstocksFeedstocks are the raw materials used in a manufacturing process to produce a final product. The typ.