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An electron transport chain(ETC) couples a chemical reaction between an electron donor (such as NADH) and an electron acceptor (such as O2) to the transfer of H+ ions across a membrane, through a set of mediating biochemical reactions. These H+ ions are used to produce adenosine triphosphate (ATP), the main energy intermediate in living organisms, as they move back across the membrane. Electron transport chains are used for extracting energy from sunlight (photosynthesis) and from redox reactions such as the oxidation of sugars (respiration).
In chloroplasts, light drives the conversion of water to oxygen and NADP+ to NADPH and a transfer of H+ ions. NADPH is used as an electron donor for carbon fixation. In mitochondria, it is the conversion of oxygen to water, NADH to NAD+ and succinate to fumarate that drives the transfer of H+ ions. While some bacteria have electron transport chains similar to those in chloroplasts or mitochondria, other bacteria use different electron donors and acceptors. Both the respiratory and photosynthetic electron transport chains are major sites of premature electron leakage to oxygen, thus being major sites of superoxide production and drivers of oxidative stress.
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What is the purpose of electron carriers in cellular respiration?
The purpose of electron carriers such as NADH and FADH2 is to dump electrons at the electron transport chain. This creates a proton gradient and allows oxidative phosphorylation to take place.
How does cellular respiration in eukaryotic cells differ from cellular respiration in prokayotic cells?
The electron transport chain (ETC) is on/in the innermost membrane of the mitochondrion and/or chloroplast (i.e. plants and photosynthesizing protists like algae), which are organelles of a eukaryotic cell. It's actually embedded into the inner membrane of a mitochondria or the thylakoid membrane of the chloroplast which plays a part in keeping the gradient that the ETC produces (remember, it's purpose is the push H+ against its gradient using electron energy).
During cell respiration what is the purpose of NAD and FAD?
FADS and NADS Pick up, temporarily store and safely eat out while the mitochondria energy does electronsconnect to onlit the electron transport chain.I didn't want to change someone's answer, but according to biology-online.org,Both are enzymes; NAD acts as an electron and hydrogen carriers in some oxidation-reduction reactions. FAD is a hydrogen acceptor molecule in the Krebs Cycle.See below:Nicotinamide adenine dinucleotide --> nad(Science: enzyme) coenzymes that act as electron and hydrogen carriers in some oxidation-reduction reactions.Fad(Science: biochemistry) a riboflavin-containing hydrogen Acceptor molecule in the Krebs Cycle of plant respiration and a coenzyme of some oxidation-reduction enzymes.
What is the purpose of light reactions?
it includes the passage of electrons along electron transport chain and produces NADPH and oxygen, and the synthesis of ATP. it includes the passage of electrons along electron transport chain and produces NADPH and oxygen, and the synthesis of ATP.
Which microscope is use to study internal parts of a cell?
An electron microscope is typically used to study the internal parts of a cell because of its high resolution and magnification capabilities. Transmission electron microscopes (TEMs) and scanning electron microscopes (SEMs) are commonly employed for this purpose.
What is the purpose of electron transport?
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Does Electron Transport supply or store energy?
The purpose of the Krebs cycle is to produce ATP or create molecules that will create ATP in the electron transport chain (NADH and FADH2)
What is the main purpose of a car?
the main purpose of a car is to transport people & belongings to another location from where you started
What is the purpose of the electrons in cellular respiration?
The purpose of electron carriers such as NADH and FADH2 is to dump electrons at the electron transport chain. This creates a proton gradient and allows oxidative phosphorylation to take place.
What is the purpose of the folds in mitochondria inner sac?
It is to carry out electron transport chain. The last step of respiration
What is the purpose of electronic transport chain?
To use energy from the passing of electrons in electron carriers into a high concentration of hydrogen ions
What is the purpose of embedding the electron transport chain in the membrane of an organism?
The purpose of embedding the electron transport chain in the membrane is to create a proton gradient across the membrane that can be used to generate ATP through chemiosmosis. This process is essential for cellular respiration and energy production in organisms.
In the electron transport chain the main purpose of the we breathe is to keep electrons moving along from the first to the last chemical carreir?
nitrogen
In an electron transport chain what is the name of the main purpose you breathe to keep electrons moving along from the first to the last chemical carrier?
Oxygen
What is the purpose of electron carriers in cellular respiration?
The purpose of electron carriers such as NADH and FADH2 is to dump electrons at the electron transport chain. This creates a proton gradient and allows oxidative phosphorylation to take place.
What is the purpose of electron transport chain in the cell?
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What is the electron configuration pattern purpose?
The purpose of an electron configuration pattern is to know what all the electrons are. love ya'll!!
