Question

Explain in detail how the standard redox potential (E0') plays a role in generating energy in bacterial and archael cells. Please provide an example for each (please include sources).

Answer 1

The redox polential or more accurately the reduction potential of a compound refers to ite tendency to . acquire electons Ę thereby to be reduced. . ATP often claims to be the energy currency of a cell. ut for the energetic balance of the cell the carriers of . reducing power are themselves as noles important. The most important eg: The molecule. NADH in its reduced or oxidised CNAD+) forms.

Redox reactions : It is a type of chemical reaction that involves a transfer of electrons between two species : Redox reactione penades living cells. They are central to both anabolic & catabolic metabolism. The ability to maintain redox balance is therefore vital to all organisms Bactena have sensitive & specific sensors involving redox active cofactors such as haem, flavins , pyridine at nucleotides & iron sulphur clusters.. that monitor redox signals including oxyggen, cytoplasmic redox state of the production of reactive oxygen species L hal metabolien. E US Bacterial metaboliem (Energy produchon) reduction - Ema NADcoenzyme oxidized organic molecule . NADH+H+ NA (proton) (reduced election Celechon camer a Organic molecule that include two hydrogen atoms carrier) oxidahon

Archae was identified as a distinct. domain a lefe beside bacteria. Archae have distinct features uke ion transducina membrane - residing protein complexes, use of novel wat cofactors in bioenergetics of methanogenesis. From aerobically resploring arobiae , unusual elechon transporting super complexes could be isolated & functionally resolved a proposal on the organization Telecbon . transport chain has been presented. 1 The unique functions of archael rhodopsin as sensory systems s as proton or chloride pumps have been elucidated on the basis q recent structural intomation on the atomic scale.