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Primary nutritional groups

... chemotrophs is limited to those whose reaction is exergonic enough to conserve enough energy for the transition of at least one proton over a membrane (equals to -15 to -20 kJ/mol). In contrast, phototrophs may use any electron donor and can even catalyse highly endergonic reactions (e. g. the photosyntheti...

Life

...heir various functions. They do so by coupling the exergonic reactions of nutrient oxidation to the endergonic processes required to maintain the living state, such as the performance of mechanical work, the active transport of molecules against concentration gradients, and the biosynthesis of complex molecule...

Exergonic reaction

An exergonic reaction is a chemical reaction where the variation of free energy is negative. This tells us the direction that the reaction will follow. See also: endergonic reaction...

Endergonic reaction

...which uses ΔH as in enthalpy . See also: exergonic reaction...
exergonic at Biology Dictionary

Substrate

...n The generation of ATP by coupling strongly exergonic reaction s with the synthesis of ATP from ADP and phosphate. subtidal zone The bottom above the continental shelf . Full article >>> The only known substrate s of neddylation are Cullin family proteins ,Cul1, Cul2, Cul3, Cul4A, C...

Exergonic reaction

Exergonic reaction An exergonic reaction is a chemical re action where the vari...nic reaction ... Full article >>> exergonic reaction : a chemical re action in which energy is released. exocrine glands : glands, such as the...

Evolution

...ls able to adapt to their external environment . exergonic reaction : a chemical re action in which energy is released. Full article >>> EVOLUTION ARY CLOCK - Defined by the rate at which mutation s accumulate within a given gene . EXON The portion of a gene that is actually trans lat...

Coupling

...n The generation of ATP by coupling strongly exergonic reaction s with the synthesis of ATP from ADP and phosphate. subtidal zone The bottom above the continental shelf . Full article >>> This mechanism is known as chemiosmotic coupling . This involves both chemical and trans port proc...
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(Date:8/20/2008)...w about a strawberry-flavored banana? Biochemists ...on say the day may be coming when scientists will ...rs in fruits and vegetables. In addition, it could... In the advance online publication of Nature on...S. Raman, Ph.D., and his colleagues report that th...
(Date:8/20/2008)...code of a simple saltwater creature could help res...tion in humans and other species. , A study publ...n the genetic code of Trichoplax , a simple saltw...world, even in the common household aquarium. , ...nes that are also found in other animals - our gen...
(Date:8/20/2008)...alled polyketals and their derivatives may improve...e lung injury, acute liver failure and inflammator...snips of ribonucleic acid to disease locations in ...eloped are simply a vehicle to get the drugs insid...ible," said Niren Murthy, assistant professor in t...
(Date:8/20/2008)...e have found a way to convert ethanol and other bi...atalyst makes hydrogen from ethanol with 90 percen...pensive ingredients. , Umit Ozkan, professor of ...e University, said that the new catalyst is much l...he world, because it does not contain precious met...
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