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.
Regarding this, what are the 3 main steps of the electron transport chain?
The three main steps in the electron transport chain are:
- Generation of a proton gradient across the mitochondrial membrane. Proton accumulation occurs in the intermembrane space of mitochondria.
- Reduction of molecular oxygen and formation of water. …
- ATP synthesis by chemiosmosis.
In this way, what does the electron transport chain do?
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.
What is the electron transport chain for kids?
An electron transport chain (ETC) is how a cell gets energy from sunlight in photosynthesis. Electron transport chains also occur in reduction/oxidation (“redox”) reactions, such as the oxidation of sugars in cellular respiration.
What is the electron transport chain quizlet?
Electron Transport Chain. A sequence of electron carrier molecules (membrane proteins) that shuttle electrons during the redox reactions that release energy used to make ATP.
What is the electron transport system and what does it do quizlet?
The Electron Transport System converts redox energy into proton-motive force. states that energy from redox reactions is translated into vectorial energy by coupling electron transfer to membrane bound proton pumps. …
What is the purpose of the electron transport chain in a cell 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 processes use electron transport?
The electron transport chain (aka ETC) is a process in which the NADH and [FADH2] produced during glycolysis, β-oxidation, and other catabolic processes are oxidized thus releasing energy in the form of ATP. The mechanism by which ATP is formed in the ETC is called chemiosmotic phosphorolation.
Why is the electron transport chain so important?
The ETC is the most important stage of cellular respiration from an energy point of view because it produces the most ATP. … When a cell needs energy, it breaks the third phosphate group bond and uses the resulting energy.