Question: What Is The Main Function Of The Electron Transport Chain?

What happens in the electron transport chain?

The electron transport chain is a series of electron transporters embedded in the inner mitochondrial membrane that shuttles electrons from NADH and FADH2 to molecular oxygen.

In the process, protons are pumped from the mitochondrial matrix to the intermembrane space, and oxygen is reduced to form water..

What is the first step in the electron transport chain?

NADH + H+ and FADH2 become oxidized, donating electrons to the first and second protein complex respectively. These complex proteins now become electron carriers themselves and are now reduced. They become oxidized as they pass these electrons down the electron transport chain.

What is the electron transport chain also known as?

The respiratory chain, otherwise known as the electron transport chain, resides in the mitochondria. A single molecule of NADH has sufficient energy to generate three ATP molecules from ADP.

Is any ATP used in the electron transport chain?

Is any ATP produced in the electron transport chain? No ATP is produced in the electron transport chain. … The name of the embedded protein that provides a channel for the hydrogen ions to pass through the membrane is ATP synthase. The flow of hydrogen ions through the protein channel provides free energy to do work.

What are the 3 main steps in the electron transport chain?

Step 1: Generating a Proton Motive Force.Step Two: ATP Synthesis via Chemiosmosis.Step Three: Reduction of Oxygen.Summary: Oxidative Phosphorylation.

What is the purpose of the electron transport chain in photosynthesis?

Electron transport helps establish a proton gradient that powers ATP production and also stores energy in the reduced coenzyme NADPH. This energy is used to power the Calvin Cycle to produce sugar and other carbohydrates.

What is the electron transport chain and what are its functions?

The electron transport chain is a cluster of proteins that transfer electrons through a membrane within mitochondria to form a gradient of protons that drives the creation of adenosine triphosphate (ATP). ATP is used by the cell as the energy for metabolic processes for cellular functions.

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 involved in aerobic respiration, the last electron carrier in the membrane transfers 2 electrons to half an oxygen molecule (an oxygen atom) that simultaneously combines with 2 protons from the surrounding medium to produce water as an end product (Figure 18.3D.

Which reactant is used in the electron transport chain quizlet?

Electrons are then transferred from the donor to the acceptor through another electron transport chain. 2 hydrogen ions and 2 electrons start the chain. Oxygen and ADP are also reactants. What are the initial reactants which start the electron transport chain?

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. What are the end products created when oxidizing foods?