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Asked by: Jeffry Koch
Updated: 6 November 2021 02:55:00 AM

What is the purpose of electron transport chain?

Explanation: The electron transport chain is primarily used to send protons across the membrane into the intermembrane space. This create a proton-motive force, which will drive ATP synthase in the final step of cellular respiration to create ATP from ADP and a phosphate group.

Correspondingly what is the electron transport chain and what is its purpose?

The electron transport chain is a series of four protein complexes that couple redox reactions, creating an electrochemical gradient that leads to the creation of ATP in a complete system named oxidative phosphorylation. It occurs in mitochondria in both cellular respiration and photosynthesis.

Accordingly, we may wonder what is the purpose of the electron transport chain quizlet?

The main purpose of the electron transport chain is to build up a surplus of hydrogen ions (protons) in the intermembrane space sp that there will be a concentration gradient compared to the matrix of the mitochondria. This will drive ATP synthase.

In the same vein people ask why do we need electron transport chain?

The electron transport chain (Figure 1) is the last component of aerobic respiration and is the only part of glucose metabolism that uses atmospheric oxygen. Oxygen continuously diffuses into plants; in animals, it enters the body through the respiratory system.
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Related questions and answers

What is the relationship between the electron transport chain and oxygen?

Explanation: Oxygen is the final electron acceptor in the electron transport chain, which allows for oxidative phosphorylation. Without oxygen, the electrons will be backed up, eventually causing the electron transport chain to halt.

What are the major events of the electron transport chain?

The events of the electron transport chain involve NADH and FADH, which act as electron transporters as they flow through the inner membrane space. In complex I, electrons are passed from NADH to the electron transport chain, where they flow through the remaining complexes. NADH is oxidized to NAD in this process.

How is energy released in the electron transport chain?

The electron carriers take the electrons to a group of proteins in the inner membrane of the mitochondrion, called the electron transport chain. Energy released in the electron transport chain is captured as a proton gradient, which powers production of ATP by a membrane protein called ATP synthase.

What is needed to start the electron transport chain?

All of the electrons that enter the transport chain come from NADH and FADH 2​start subscript, 2, end subscript molecules produced during earlier stages of cellular respiration: glycolysis, pyruvate oxidation, and the citric acid cycle.

What is an example of electron transport chain?

In eukaryotes, the electron transport chain can be found in the inner mitochondrial membrane where it serves as the site of oxidative phosphorylation. It is also found in the thylakoid membrane of the chloroplast in photosynthetic organisms. In bacteria, the electron transport chain is located in their cell membrane.

How does an electron transport chain work?

In the electron transport chain, electrons are passed from one molecule to another, and energy released in these electron transfers is used to form an electrochemical gradient. In chemiosmosis, the energy stored in the gradient is used to make ATP.

What is the electron transport chain made up of?

The electron transport chain is composed of four protein complexes, which are embedded in the inner membrane of the mitochondrion, along with two mobile carriers (mobile carrier Q {coenzyme Q} and mobile carrier C, that shuttle electrons through the ETC. The ETC is where the greatest amount of ATP is synthesized.

What is the final product of the electron transport chain?

At the end of the electron transport chain, electrons are transferred to molecular oxygen, which splits in half and takes up H +start superscript, plus, end superscript to form water. Gradient-driven synthesis of ATP.

Does the electron transport chain require oxygen?

Explanation: Oxygen is the final electron acceptor in the electron transport chain, which allows for oxidative phosphorylation. Without oxygen, the electrons will be backed up, eventually causing the electron transport chain to halt.

What is the electron transport chain in simple terms?

Definition. A group of compounds that pass electron from one to another via redox reactions coupled with the transfer of proton across a membrane to create a proton gradient that drives ATP synthesis.

What are the components of the electron transport chain?

The electron transport chain is also called the Cytochrome oxidase system or as the Respiratory chain. The components of the chain include FMN, Fe–S centers, coenzyme Q, and a series of cytochromes (b, c1, c, and aa3).