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Where do the 36 ATP molecules go to in the electron transport chain?
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∙ 11y ago
From Glycolysis and Electron Transport Chain
Wiki User
∙ 11y ago
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The energy of the electrons passing along the electron transport chain is used to make what?
ATP molecules
What is the incoming energy source for electron transport chain?
The electron transport chain is the driving energy behind ATP synthesis. The energy itself comes from electron donors. In chloroplast, this donor's glucose.
What are electron transport chains made up of?
The majority of the energy conserved during catabolism reactions occurs near the end of the metabolic series of reactions in the electron transport chain. The electron transport or respiratory chain gets its name from the fact electrons are transported to meet up with oxygen from respiration at the end of the chain. The overall electron chain transport reaction is:2 H+ + 2 e+ + 1/2 O2 ---> H2O + energyNotice that 2 hydrogen ions, 2 electrons, and an oxygen molecule react to form as a product water with energy released in an exothermic reaction. This relatively straight forward reaction actually requires eight or more steps. The energy released is coupled with the formation of three ATP molecules per every use of the electron transport chain.Link to a complete animated version of Electron Transport - Brooks-ColeLink to: Rodney Boyer Animation of Electron TransportPre-Initiation of Electron Transport Chain:The electron transport chain is initiated by the reaction of an organic metabolite (intermediate in metabolic reactions) with the coenzyme NAD+ (nicotinamide adenine dinucleotide). This is an oxidation reaction where 2 hydrogen atoms (or 2 hydrogen ions and 2 electrons) are removed from the organic metabolite. (The organic metabolites are usually from the citric acid cycle and the oxidation of fatty acids--details in following pages.) The reaction can be represented simply where M = any metabolite.MH2 + NAD+ -----> NADH + H+ + M: + energyOne hydrogen is removed with 2 electrons as a hydride ion (H-) while the other is removed as the positive ion (H+). Usually the metabolite is some type of alcohol which is oxidized to a ketone.NAD+ is a coenzyme containing the B-vitamin, nicotinamide, shown on a previous page.The purpose of the other seven steps in the electron transport chain is threefold:1) to pass along 2H+ ions and 2e- to eventually react with oxygen;2) to conserve energy by forming three ATP's; and3) to regenerate the coenzymes back to their original form as oxidizing agents.Quiz: What are the initial reactants which start the electron transport chain?Answer2 hydrogen ionsand 2 electronsstart the chain.Oxygen andADP are alsoreactants.What are the final products of the chain?Answer3 ATP and awater moleculeare products.Click for larger imageInitiation of Electron Transport Chain:Once the NADH has been made from a metabolite in the citric acid cycle inside of the mitochondria, it interacts with the first complex 1 enzyme, known as NADH reductase. This complex 1 contains a coenzyme flavin mononucleotide (FMN) which is similar to FAD.The sequence of events is that the NADH, plus another hydrogen ion enter the enzyme complex and pass along the 2 hydrogen ions, ultimately to an interspace in the mitochondria. These hydrogen ions, acting as a pump, are utilized by ATP synthetase to produce an ATP for every two hydrogen ions produced. Three complexes (1, 3, 4) act in this manner to produce 2 hydrogen ions each, and thus will produce 3 ATP for every use of the complete electron transport chain.In addition, NADH passes along 2 electrons to first FMN, then to an iron-sulfur protein (FeS), and finally to coenzyme Q. The net effect of these reactions are to regenerate coenzyme NAD+. This regeneration of reactants occurs in many of the reactions so that a cycling effect occurs. The NAD+ is ready to react further with metabolites in the citric acid cycle.Coenzyme Q, which also picks up an additional 2 hydrogen ions to make CoQH2, is soluble in the lipid membrane and can move through the membrane to come into contact with enzyme complex 3.In summary, the very first enzyme complex in the electron transport chain is coupled with the formation of ATP. The coupled reaction may be written as:a) MH2 + NAD+ ---> NADH + H+ + M + energyb) ADP + P + energy ---> ATP + H2O
In glycolysis what is the number of NADH produced?
Glycolysis is the breakdown of glucose by enzymatic action. It yields 2 NADH molecules and 2 ATP molecules per glucose molecule.
What is ATP in kids terms?
ATP - Adenosine Triphospate, is not easy for kids to understand. The easiest relative description of this is replacing the term ATP with "energy".
How many ago molecules are used in the electron transport chain?
i meant to say How many Atp molecules are used in the electron transport chain
What does the electron transport train produce?
The electron transport chain is used to make ATP.
Which process produces most of ATP molecules?
The electron transport chain makes the most ATP. It is the slowest of all processes, but makes 32 ATP.
The electron transport chain can produce up to ATP molecules of glulse?
34 ATP molecules per molecule of glucose.
What molecules does the Krebs cycle make that the electron transport chain uses?
atp
What molecules carry high-energy electrons into the electron transport chain?
The answer is NADH and FADH2. Both of these are electron carriers.
The energy of the electrons passing along the electron transport chain is used to make what?
ATP molecules
What describes the ain role of the electron transport chain in cellular respiration?
It produces molecules of atp
What does electron transport chain make?
The electron transport chain is used to make ATP.
How many ATP does electron transport chain produce?
It produces 34 ATP's
What stage of cellular respiration yield the most ATP?
Electron transport chain. During electron transport chain 34 ATP molecules are produced whereas glycolysis and citric acid cycle yield 4 ATPs (2 during glycolysis and 2 during citric acid cycle).
What helps electron-carrying molecules move along the membranes of mitochondria and chloroplasts?
Electron transport chain and atp production.
