<span>This result is produced by the selective permeability of the plasma membrane when the presence of negatively charged ions does not diffuse into the cell and the action of several sodium-potassium pump units causes an unequal distribution of charges through the membrane.</span>

7 0

3 years ago

Although the direct reduction of CoQ to CoQH2 is thermodynamically possible, this reaction is not a direct part of the electron

Nady [450]

Answer:

This electron handoff from NADH to FMN, as opposed to direct reduction of CoQ by NADH, a critical component of the electron transport chain is important for Signaling Transduction and Metabolomics

Explanation:

The NADH-CoQ reductase reaction is catalyzed by Complex I. In this course of activity, following events takes place-

a) FNM (NADH dehydrogenase flavoprotein) is reduced by the NADH to FMNH2 through following reactions –

NADH+H++E-FMN↔NAD++E-FMNH2

b) In the next phase coenzyme Q receives electron from FMNH2 through the the iron–sulfur centers of the NADH-CoQ reductase

c) The iron atom undergoes oxidation–reduction cycles to conserve mitochondrial protein as lataxin and hence transport protons from the matrix to the intermembranal space thereby Signaling Transduction and Metabolomics

5 0

3 years ago