0
Is the following sentence true or false hydrogen servers as the final electron acceptor of the electron transports chain?
Wiki User
∙ 11y ago
False
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
When an electron and proton co lid what happens?
They form a hydrogen atom.
Is it possible for an atom to have no neutrons?
A hydrogen atom is only a proton and an electron. Beyond that the neutron seems to keep the nucleus together and stable. Maybe a better question is, "What is the difference between a hydrogen atom without an electron and a proton?"
What can be considered to be the combination of a proton and an electron?
The pair form a hydrogen atom.There is a fallacy that's taught about this pairing, which is that the electron-proton pair form a neutron. See my answer to the question "What particle has the same mass as a hydrogen atom?" for more details about this, and why it is wrong.
Where do the electrons come from in proton proton chain reaction if hydrogen has only a proton in its atom?
when the 2 Hydrogen nuclei fuse, one of the protons is changed to a neutron via beta + decay, this produces an atom of Deuterium, a positron (beta + particle) and a neutrino. This positron will only travel a short distance before contacting an electron and annihilating each other to convert their masses and kinetic energies into the energy of the photons. The electron is most probably a free electron, as the high temperatures involved in Nuclear fusion would have provided enough energy to ionise electrons from their parent atom.
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
Does hydrogen serve as the final electron acceptor of the electron transport chain?
No, oxygen is the final electron acceptor of the electron transport chain.
What is the final hydrogen acceptor in electron transport and where did it come from?
The final hydrogen acceptor in the electron transport chain is Oxygen. It comes from the ionization of water. Hope this helps. The final hydrogen acceptor in the electron transport chain is Oxygen. It comes from the ionization of water. Hope this helps.
Does the hydrogen serve as the final electron acceptor of the electron transport chain?
Oxygen is the final electron acceptor of the electron transfer chain. Hydrogen ( protons ) come down their concentration gradient and through the ATP sythase making ATP. Then they, with the electrons oxygen accepts, become H2O.
Hydrogen serves as the final electron acceptor of the electrons transport chain true or false?
False. Oxygen serves as the final electron acceptor of the electron transport chain.
What is the ultimate electron and hydrogen ion acceptor in aerobic respiration?
ATP
Can hydrogen serve as the final electron acceptor of the electron transport chain?
No. Hydrogen's electronegativity is too weak. At 2.5 hydrogen does not have the electronegativity to pull electrons down the electron transport chain.
What is the final acceptor of the electrons and hydrogen's of the electron transport chain?
oxygen
Regardless of the electron or hydrogen acceptor used one of the products of frementation is always?
NAD+
An important electron and hydrogen acceptor in noncyclic pathways of ATP formation is?
NADP+
During glycolysis NADH is formed when hydrogen atoms are transferred to an electron acceptor called?
NAD+
What happens when that final electron acceptor accepts electrons from the electron transport chain?
Hydrogen ions are pumped across the mitochondria's inner membrane producing a concentration gradient
What is the final acceptor of hydrogen in a cellular respiration?
Molecular Oxygen, otherwise known as O2.
