Sentences with phrase «electron acceptor»

This is quite similar to human breathing, where oxygen also serves as electron acceptor.

In such organic - rich marine sediments, sulfate then becomes the most important terminal electron acceptor due to its high concentration in seawater, although it too is depleted by a depth of centimeters to meters.

In DNA's core, base pairs form a so - called BORDER = 0 > stack (gray, shown in top and side views) along which electrons may tunnel from a distant site to an artificial electron acceptor (yellow).

Oligothiophene (4T) and polythiophene (P3HT), two typical organic semiconductors, can be doped with a second type of molecule such as a strong electron acceptor (F4TCNQ) for example to control the electrical conductivity.

Benzothiadiazole - based Calamitic Non-Fullerene electron Acceptors for Solution - Processed Organic Solar Cells

If the sedimentation rate is low (about 1 cm / yr), the organic carbon content is low (about 1 %), and oxygen is abundant, aerobic bacteria can use up all the organic matter in the sediments faster than oxygen is depleted, so lower - energy electron acceptors are not used.

Then, the microorganisms use the oxygen as electron acceptor.

«Our goal is to define the role of these cytochromes in the metabolic switching between different terminal electron acceptors,» said Dr. Thomas Squier, a PNNL biochemist and senior author of the publication.

That is all down to a bald chemical fact: the element is a powerful «electron acceptor», readily sucking up electrons set free when enzymes within living cells break down organic foodstuffs.

Below the sediment surface there is plenty of hydrogen sulfide and carbon for bacteria to consume via oxidation, or removing electrons, but the electron acceptor is up at the sediment surface, in the form of dissolved oxygen in the overlying water.

When the researchers switched the electric current off by deoxygenating the water, thereby removing the electron acceptor at the sediment surface, the depth of the hydrogen sulfide layer in the sediment rose in less than an hour, as deeper microbes could no longer consume it.

Shewanella cells were allowed to attach to the thin films, where the iron in the hematite serves as an electron acceptor.

C. hydrogenoformans serves as a model for studies of hydrogenogens — diverse bacteria and archaea that grow anaerobically utilizing carbon monoxide (CO) as their sole carbon source and water as an electron acceptor, producing CO2 and H2 as waste products.

Although Solar radiation and lightning (which has been detected by the ESA's Venus Express probe in 2007) should be producing large amounts of carbon monoxide (CO), the gas was found to be scarce, as if something was removing it (such as hydrogenogens, diverse bacteria and archaea that grow anaerobically utilizing CO as their sole carbon source and water as an electron acceptor to produce carbon dioxide and molecular hydrogen as waste products).

So when you eat like a rabbit would and not as a human is designed you lower the redox potential in your cells and you can not deliver oxygen well to ATPase to act like the terminal electron acceptor.

Biological functions of ubiquinol include serving as an electron acceptor in the electron transport chain in order to produce ATP, making it essential for energy production within cellular mitochondria throughout the body and particularly in brain and heart muscle tissue, due to the high energy demands of these organs.

Our results do not support that ortho / para directing groups are electron donors and meta directing groups are electron acceptors.