When discussing chemosynthesis vs. photosynthesis, one important factor that distinguishes these two processes is the use of sunlight. Photosynthetic organisms use carbon to generate organic molecules (carbohydrates, lipids, and proteins) and build biological mass. By turning inorganic molecules into organic molecules, the processes of chemosynthesis turn nonliving matter into living matter. The oxygen produced as a bi-product of photosynthesis is used by many organisms, including plants and animals, for cellular respiration. Instead, methane can be used, or hydrogen sulfide as the energy source for this reaction to proceed. The diagram below compares examples of these two processes - chemosynthesis in a seafloor hydrothermal vent bacterium, and photosynthesis in a terrestrial plant. All organisms doing chemosynthesis use the energy released by chemical reactions to make sugar. During chemosynthesis, bacteria living on the sea floor or within animals use energy stored in the chemical bonds of hydrogen sulfide and methane to make glucose from water and carbon dioxide (dissolved in sea water). This process occurs in the heart of deep sea communities, sustaining life in the absolute darkness where the light of the sun does not penetrate. Others, such as algae, some bacteria, and even some animals, also possess the ability to create their own sugar and use it as chemical energy. In hydrogen sulfide chemosynthesis, in the presence of carbon dioxide and oxygen,carbohydrates (CH 2 O) can be produced: CO 2 + O 2 + 4H 2 S → CH 2 O + 4S + 3H 2 O. Differences and Similarities Between Chemosynthesis and Photosynthesis. Earth supports numerous organisms that have the green pigment in which photosynthesis occurs. Energy is released from an ATP molecule for cellular processes when it. Additional Information All photosynthetic organisms use solar energy to turn carbon dioxide and water into sugar and oxygen. Chemosynthesis is a biosynthesis performed by living organisms. Like chemosynthesis, it allows living things to make more of themselves. Chemosynthesis is a process certain organisms use to obtain energy for the production of food, akin to photosynthesis, but without the use of sunlight. Chemosynthesis depends on the presence of both reduced and oxidized compounds to be used as electron donors and acceptors, respectively. has a phosphate group removed. At oxic–anoxic interfaces, the simultaneous access to, e.g., S 2−, NH 4 + or CH 4, and O 2 can support chemosynthesis. Some, like plants, are well-known for their role in providing air and sustenance to many ecosystems. Examples of biosynthesis include photosynthesis, chemosynthesis, amino acid synthesis, nucleic acid synthesis, and ATP synthesis. Chemosynthesis is a process of use of energy produced by inorganic chemical reactions to produce food. The energy comes from the oxidization of inorganic chemicals that the organisms find in their environment. Chemosynthesis occurs around hydrothermal vents and methane seeps in the deep sea where sunlight is absent. capture the transfer energy. Chemosynthesis is the process of converting carbon in the form of carbon dioxide or methane into organic molecules, without sunlight present. It is through this process that a more complex chemical compound is produced. Chemosynthesis occurs in darkness, on the seafloor, whereas, photosynthesis requires light energy from the sun to make food. Chemosynthesis is a process through which some organisms use energy from chemicals in their environment to build sugars in the absence of. 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