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What cellular compartment becomes acidic during mitochondrial electron transport?
The mitochondrial intermembrane space becomes acidic during mitochondrial electron transport due to the pumping of protons from the matrix across the inner membrane to the intermembrane space by complexes I, III, and IV of the electron transport chain. This forms an electrochemical gradient used to generate ATP through ATP synthase.
When is the electron transport chain carried out?
Plants, fungi, and animals are all eukaryotes and possess mitochondria, which is the site of the electron transport chain. Prokaryotes have no mitochondria and perform the electron transport chain across their cell membranes. Electron transport chain also occurs in thylakoid membrane of chloroplasts.
When electrons are transported to enzyme complex 1 where is a proton transported?
Proton transport occurs in Complex I of the electron transport chain within the mitochondria. As electrons move through the complex, protons are pumped from the mitochondrial matrix into the intermembrane space, creating a proton gradient that drives ATP synthesis.
Where in the cell do electron transport chain occur?
In the mitochondria. The complexes need for the electron transport chain are attached on the inner side of the inner mitochondrial membrane, which channels opening into the intermembrane space for pumping out protons.
What is a waste product of the electron transport chain?
Protons fall down their concentration gradient through the ATP-synthase and are picked up by oxygen, along with electrons, to make water. So, ATP and water " comes out " the electron transport chain.
Electron transport chain pumps hydrogen ions to what space?
mitochondria inner membrane
During the first electron transport chain in which direction are protons actively pumped?
Protons are actively pumped across the inner mitochondrial membrane from the mitochondrial matrix to the intermembrane space during the first electron transport chain. This creates a proton gradient that is essential for ATP production.
What cellular compartment becomes acidic during mitochondrial electron transport?
The mitochondrial intermembrane space becomes acidic during mitochondrial electron transport due to the pumping of protons from the matrix across the inner membrane to the intermembrane space by complexes I, III, and IV of the electron transport chain. This forms an electrochemical gradient used to generate ATP through ATP synthase.
What portion of the mitochondria has the lowest pH?
According to another answer to a similar question here on this site, "The intermembrane space has the lowest pH, highest concentration of H+, due to the gradient created by the electron transport chain."
The energy released in the mitochondrial electron transport chain is used to transport protons into the?
The energy released in the mitochondrial electron transport chain is used to transport protons into the intermembrane space of the mitochondria. This creates a proton gradient that is utilized by ATP synthase to produce ATP through oxidative phosphorylation.
Where do the electrons originate from in the electron transport chain?
The electrons in the electron transport chain originate from the breakdown of glucose during cellular respiration.
Which accumulates in the inter membrane space of the mitochondrion during electron transport?
During electron transport in the mitochondrion, protons (H+) accumulate in the intermembrane space. This happens as electrons are transferred through the electron transport chain, creating a proton gradient across the inner mitochondrial membrane. This gradient of protons is later utilized by ATP synthase to generate ATP through oxidative phosphorylation.
The electron transport chain produces ATP through what process?
The electron transport chain produce ATP during cell respiration and photosynthesis.
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).
Where does the first electron carrier pump hydrogen ions?
The first electron carrier that pumps hydrogen ions during cellular respiration is NADH dehydrogenase (complex I) in the electron transport chain. It pumps hydrogen ions across the inner mitochondrial membrane from the matrix to the intermembrane space.
How many protons in total are pumped into the intermembrane space of a mitochondria through the electron transport chain, if each complex individually receives 2 electrons?
12 protons
Is The electron transport chain recycled during fermentation?
No, NAD+ is
