Asked by: Eresvita Ehmanns
science chemistry

Where is etc located in cellular respiration?

Last Updated: 6th March, 2020

In eukaryotes, an important electron transportchain is found in the inner mitochondrial membrane where itserves as the site of oxidative phosphorylation through the actionof ATP synthase. It is also found in the thylakoid membrane of thechloroplast in photosynthetic eukaryotes.

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Also asked, where is the ETC in cellular respiration?

The electron transport chain is the final stageof aerobic respiration leading to the forming of ATP in theinner membrane of the mitochondrion. The emergent picture is thatof coupled reactions through five protein structures associatedwith that inner membrane. Complex I (NADH-coenzyme Qoxidoreductase).

One may also ask, what happens in the electron transport chain in cellular respiration? The electron transport chain is a series ofelectron transporters embedded in the inner mitochondrialmembrane that shuttles electrons from NADH andFADH2 to molecular oxygen. In the process, protons arepumped from the mitochondrial matrix to the intermembrane space,and oxygen is reduced to form water.

Thereof, is ETC part of cellular respiration?

For all other forms of life, energy is extracted fromnutrients through the reactions of metabolism--cellularrespiration. Article Summary: The electron transport chain isthe most complex and productive pathway of cellularrespiration.

How does the ETC work?

The electron transport chain (aka ETC) is aprocess in which the NADH and [FADH2] produced duringglycolysis, β-oxidation, and other catabolic processes areoxidized thus releasing energy in the form of ATP. The mechanism bywhich ATP is formed in the ETC is called chemiosmoticphosphorolation.

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What are the products of glycolysis?

Glycolysis involves the breaking down of a sugar(generally glucose, although fructose and other sugars may be used)into more manageable compounds in order to produce energy. The netend products of glycolysis are two Pyruvate, two NADH, andtwo ATP (A special note on the "two" ATP later).

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What is the purpose of fermentation?

The purpose of fermentation is to clear thepyruvate and to oxidize NADH to NAD+, which is used again inglycolysis with another glucose molecule.

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What are the products of cellular respiration?

Most of the steps of cellular respiration takeplace in the mitochondria. Oxygen and glucose are both reactants inthe process of cellular respiration. The main product ofcellular respiration is ATP; waste products includecarbon dioxide and water.

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Where does the electron transport system occur?

In eukaryotes, an important electron transportchain is found in the inner mitochondrial membrane where itserves as the site of oxidative phosphorylation through the actionof ATP synthase. It is also found in the thylakoid membrane of thechloroplast in photosynthetic eukaryotes.

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What is the role of oxygen in cellular respiration?

As it turns out, oxygen is the essentialingredient for making energy in a process called cellularrespiration. All body cells engage in cellularrespiration. They use oxygen and glucose, a sugar foundin the foods we eat and convert them to ATP (adenosinetriphosphate), or cellular energy, and carbondioxide.

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What is the process of anaerobic respiration?

Process of Anaerobic Respiration
Instead, pyruvate is converted into a differentbyproduct through a fermentation process, and carbon dioxideis released as well. Two ATP molecules are generated in theprocess. The process is essentially: glucose +enzymes = carbon dioxide + ethanol / lacticacid.

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How many ATP are made during the ETC of cellular respiration?

Biology textbooks often state that 38 ATPmolecules can be made per oxidised glucose moleculeduring cellular respiration (2 from glycolysis, 2 from theKrebs cycle, and about 34 from the electron transportsystem).

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What is ATP used for?

The Adenosine triphosphate (ATP) molecule is thenucleotide known in biochemistry as the "molecular currency" ofintracellular energy transfer; that is, ATP is able to storeand transport chemical energy within cells. ATP also playsan important role in the synthesis of nucleic acids.

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How is ATP generated?

The energy released from the electrons during theelectron transport system pumps the protons. This energy is used byenzymes to unite ADP with phosphate ions to form ATP. Theenergy is trapped in the high-energy bond of ATP by thisprocess, and the ATP molecules are made available to performcell work.

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What are three products of cellular respiration?

Oxygen and glucose are both reactants in the process ofcellular respiration. The main product of cellularrespiration is ATP; waste products include carbondioxide and water.

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Where does the glucose come from in cellular respiration?

Steps of Cellular Respiration
The main role of glucose in each of these stepsis to provide energy in its bonds. In glycolysis, glucoseenters the cell. Next, a series of enzymes convert it to adifferent form called pyruvate in the main compartment of the cell,the cytoplasm. Two pyruvate are formed from oneglucose.

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What are the four parts of cellular respiration?

The cellular respiration process includesfour basic stages or steps: Glycolysis, which occurs in allorganisms, prokaryotic and eukaryotic; the bridge reaction, whichstets the stage for aerobic respiration; and the Krebs cycleand the electron transport chain, oxygen-dependent pathways thatoccur in sequence in the

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How are photosynthesis and cellular respiration connected?

Photosynthesis involves the use of energy fromsunlight, water and carbon dioxide to produce glucose and oxygen.Cellular respiration uses glucose and oxygen to producecarbon dioxide and water. Humans, animals and plants depend on thecycle of cellular respiration and photosynthesis forsurvival.

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What is the formula for cellular respiration?

C 6 H 12 O 6 + 6 O 2 --> 6 CO 2 + 6 H 2 O + ATP isthe complete balanced chemical formula for cellularrespiration.

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What is the main purpose of the electron transport chain?

The main purpose of the electron transport chainis to build up a surplus of hydrogen ions (protons) in theintermembrane space so that there will be a concentration gradientcompared to the matrix of the mitochondria.

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What goes into the electron transport chain?

Electron carriers are reduced during glycolysisand the citric acid cycle to NADH + H+ and FADH2. These carriersthen donate electrons and protons to the electroncarrier proteins of the electron transport chain. The finalelectron acceptor is oxygen. Together with oxygen,electrons and protons form molecules of water.

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What is the electron transport chain simple?

The electron transport chain consists of a seriesof redox reactions in which electrons are transferred from adonor molecule to an acceptor molecule. The underlying forcedriving these reactions is the free energy (energy available to dowork) of the reactants and products.

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How many ATP are generated in the electron transport chain?

This accounts for about two ATP molecules. Atotal of 32 ATP molecules are generated inelectron transport and oxidativephosphorylation.