Search results
Results from the WOW.Com Content Network
Substrate-level phosphorylation exemplified with the conversion of ADP to ATP. Substrate-level phosphorylation is a metabolism reaction that results in the production of ATP or GTP supported by the energy released from another high-energy bond that leads to phosphorylation of ADP or GDP to ATP or GTP (note that the reaction catalyzed by creatine kinase is not considered as "substrate-level ...
In chemistry, a reactive intermediate or an intermediate is a short-lived, high-energy, highly reactive molecule. When generated in a chemical reaction, it will quickly convert into a more stable molecule. Only in exceptional cases can these compounds be isolated and stored, e.g. low temperatures, matrix isolation. When their existence is ...
Calvin–Benson cycle. C 3 carbon fixation is the most common of three metabolic pathways for carbon fixation in photosynthesis, the other two being C 4 and CAM.This process converts carbon dioxide and ribulose bisphosphate (RuBP, a 5-carbon sugar) into two molecules of 3-phosphoglycerate through the following reaction:
In plants, 2-phosphoglycolate has a potentially toxic effect as it inhibits a number of metabolic pathways. [3] The activities of important enzymes in the central carbon metabolism of the chloroplast such as triose-phosphate isomerase, phosphofructokinase, or sedoheptulose 1,7-bisphosphate phosphatase show a significant decrease in the presence of 2-PG.
This forms a carbocation intermediate, and the X then bonds to the positive carbon that is available, as in the following two-step reaction. [4] CH 2 CH 2 + HX → CH 2 CH + 3 + X − CH 2 CH + 3 + X − → CH 2 XCH 3. Similarly, in an H 2 O addition reaction, the pi bond of an alkene acts as a nucleophile and bonds with the proton of an [H 3 ...
Carbfix is an Icelandic company founded in 2007. It has developed an approach to permanently store CO 2 by dissolving it in water and injecting it into basaltic rocks. Once in the subsurface, the injected CO 2 reacts with the host rock forming stable carbonate minerals, thus providing permanent storage of the injected CO 2 [1]
Co-A then rotates in the active site into the position where acetate can covalently bind to CoA. The covalent bond is formed between the sulfur atom in Co-A and the central carbon atom of acetate. [5] The ACS1 form of acetyl-CoA synthetase is encoded by the gene facA, which is activated by acetate and deactivated by glucose. [6]
Solar fuels can be produced via direct or indirect processes. Direct processes harness the energy in sunlight to produce a fuel without intermediary energy conversions. Solar thermochemistry uses the heat of the sun directly to heat a receiver adjacent to the solar reactor where the thermochemical process is performed.