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The high energy from the electron carriers NADH and FADH2 is passed to membrane-bound enzymes that use the energy to pump protons across the inner membrane into the inter-membrane space. The energy is gradually used by an entire "chain" of enzymes to establish a proton gradient across the inner membrane of the mitochondrion.
This is where chemiosmosis takes place. Proton motive force generates ATP through the passive diffusion of protons through the enzyme ATP synthase, thus converting ADP and and inorganic phosphate group into high energy ATP molecules. These ATP molecules can drive other endergonic reactions in the cell.
Wiki User
∙ 11y ago
During cellular respiration, the Electron Transport Chain (ETC) is a series of protein complexes and molecules located in the inner mitochondrial membrane that transfer electrons from NADH and FADH2 to oxygen. This transfer of electrons drives the production of ATP through a process called oxidative phosphorylation. As electrons move through the ETC, protons are pumped across the inner mitochondrial membrane, creating an electrochemical gradient that is used to generate ATP.
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What are 3 organic compounds in cellular respiration?
The three organic compounds involved in cellular respiration are glucose, pyruvate, and acetyl-CoA. Glucose is broken down into pyruvate during glycolysis, which is then converted to acetyl-CoA in the transition reaction before entering the citric acid cycle.
How many total phases are in cellular respiration?
3: Glycolysis, Kreb's, ETC
Where is oxygen consumed in cellular respiration?
Oxygen is consumed in the electron transport chain of cellular respiration, specifically during the process of oxidative phosphorylation where it serves as the final electron acceptor. This occurs in the inner mitochondrial membrane where electrons are transferred through a series of protein complexes, ultimately generating ATP.
How much ATP does it cost to run cellular respiration?
For cellular respiration two ATP must be put into glycolysis which starts the whole process of cellular respiration Steps: 1. Glycolysis 2. Transition Stage 3. Kreb cycle 4. Electron Transport Chain (ETC)
Why is cellular respiration so important to all living things?
Cellular respiration is the process that produces usable cellular energy in the form of ATP. The organisms that run cellular respiration rely on it because their cells need the energy in order to function and live.
Where is the majority of ATP produced during cellular respiration?
The majority of ATP is produced during cellular respiration in the mitochondria, specifically in the process of oxidative phosphorylation that occurs in the inner mitochondrial membrane. This process involves the electron transport chain and ATP synthase to generate ATP from the energy released by the movement of electrons.
What is the sequence of events in cellular respiration?
Cellular respiration is a complex process that occurs in three main stages: glycolysis, the citric acid cycle (Krebs cycle), and oxidative phosphorylation (electron transport chain and chemiosmosis). During glycolysis, glucose is broken down into pyruvate. The citric acid cycle then further breaks down pyruvate to generate electrons and carbon dioxide. Finally, in oxidative phosphorylation, electrons are transferred through the electron transport chain to produce ATP, the cell's main energy source.
Why is ATP production during cellular respiration characterized as indirect?
ATP is not produced directly by the ETC but instead via the proton gradient generated during electron transport through the ETC.
Whice process of cellular respiration produces the most ATP?
The electron transport chain produces the most ATP during cellular respiration. It is the final stage of aerobic respiration and occurs in the inner mitochondrial membrane. Here, electrons are passed down a series of protein complexes, generating a proton gradient that drives ATP synthesis.
What are 3 organic compounds in cellular respiration?
The three organic compounds involved in cellular respiration are glucose, pyruvate, and acetyl-CoA. Glucose is broken down into pyruvate during glycolysis, which is then converted to acetyl-CoA in the transition reaction before entering the citric acid cycle.
What is the gas used during respiration?
Oxygen is the gas used during respiration. It is inhaled into the lungs and then transported via the bloodstream to cells where it is used to produce energy through the process of cellular respiration.
What are the biochemical processes at the cellular level that sustain life?
Nutrition, Digestion, Response, Excretion, Cellular Respiration, etc.
How many total phases are in cellular respiration?
3: Glycolysis, Kreb's, ETC
Water is produced during which stage in cellular respiration?
Water is produced during the electron transport chain stage of cellular respiration. It is a byproduct of the electron transport chain when oxygen is the final electron acceptor, leading to the formation of water molecules.
Where in the cell does respiration take place?
Most of cellular respiration occurs within the mitochondria of the cell. Glycolysis occurs outside of the mitochondria, while the Krebs Cycle and ETC takes place inside the mitochondria.
Why is cellular respiration aerobic?
The single most important biochemical especially to us is " Cellular respiration ". Because this is how we derive energy from what we eat and used in some metabolic reactions and muscle contraction, nerve impulses.or in simple "Cellular respiration" is process from which the organisms can derive energy from the metabolic reactions.cellular respiration is starts from glucose. During cellular respiration one mole of glucose and six moles of molecular oxygen going to produce six carbon dioxide, six water molecules, and energy and 38 ATP's ( energy currency for biological system )Under cellular respiration :1) Glycolysis/ anaerobic cellular respiration ( breaking up glucose; gluc= sweet, ose = sugar ): It occurs completely under the absence of oxygen. so it this is called " anaerobic cellular respiration ".where in Glycolysis the glucose molecule need 2ATP's and generates 2ATP's so it generates a net of 2 ATP's.the byproducts of glycolysis that re-engineeredand enters in to aerobic( requires oxygen ) cellular respiration process called ;2) Krebs cycle( aerobic cellular respiration ) : Krebs cycle generates another 2 net ATP's. This 2ATP's produces NADH.3) Electron transport chain/ ETC ( aerobic cellular respiration ) : ETC generates 34 ATP's by using the NADH which are produced from the ATP in Krebs cycle.this cycle requires oxygen so aerobic respiration.that's about cellular respiration and aerobic process ( 2nd and 3rd ).Here some important thing is some of the byproducts of the glucose ; instead of going in to Krebs and ETC cycle enters into a process called Fermentation and produces alcohol and lactic acid.( Yeast= alcohol, called alcohol fermentation)( Humans= lactic acid) .
Where is oxygen consumed in cellular respiration?
Oxygen is consumed in the electron transport chain of cellular respiration, specifically during the process of oxidative phosphorylation where it serves as the final electron acceptor. This occurs in the inner mitochondrial membrane where electrons are transferred through a series of protein complexes, ultimately generating ATP.
