chemical energy is stored in oxygen in cellular respiration.
chemical energy is stored in oxygen in cellular respiration.
where is chemical energy stored in cellular respiration?
oxygen
cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (atp), and then release waste products. the reactions involved in respiration are catabolic reactions, which break large molecules into smaller ones, releasing energy in the process, as weak so-called "high-energy" bonds are replaced by stronger bonds in the products. respiration is one of the key ways a cell releases chemical energy to fuel cellular activity. cellular respiration is considered an exothermic redox reaction which releases heat. the overall reaction occurs in a series of biochemical steps, most of which are redox reactions themselves. although cellular respiration is technically a combustion reaction, it clearly does not resemble one when it occurs in a living cell because of the slow release of energy from the series of reactions.
cellular respiration
carbon dioxide is converted into sugars in a process called carbon fixation; photosynthesis captures energy from sunlight to convert carbon dioxide into carbohydrate. carbon fixation is an endothermic redox reaction. in general outline, photosynthesis is the opposite of cellular respiration: while photosynthesis is a process of reduction of carbon dioxide to carbohydrate, cellular respiration is the oxidation of carbohydrate or other nutrients to carbon dioxide. nutrients used in cellular respiration include carbohydrates, amino acids and fatty acids. these nutrients are oxidized to produce carbon dioxide and water, and to release chemical energy to drive the organism's metabolism. photosynthesis and cellular respiration are distinct processes, as they take place through different sequences of chemical reactions and in different cellular compartments.
photosynthesis