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The energy released in the mitochondrial electron transport chain is used to transport protons into the?
Wiki User
∙ 13y ago
matrix. to create a concentration gradient
Wiki User
∙ 13y ago
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A(n) is described as a nucleus of protons and neutrons surrounded by an electron cloud.?
Atomic number is the equivalent of the number of protons in an atomic nucleus.
A positive two ion of calcium ca plus 2 would have how many protons electrons and neutrons?
20 protons, 18 electron's, and 20 neutrons
How many dots are shown in the electron dot diagram for calcium in group 2 and period 4 with 20 protons and 20 electrons?
Two dots are shown in the electron dot diagram for calcium in group 2 and period 4 with 20 protons and 20 electrons.
When a chlorine atom gains an electron what is it charge?
when the chlorine atom gains an electron its charge becomes -1. this is because the total number of electrons for chlorine is now 18. protons and electrons have the same atomic number, but when a chlorine ion forms it has one extra electron compared to the number of protons therefore giving it a negative charge of 1.
Most halogens form compounds by a. gaining an electron to form a negative ion. b. losing an electron to form a positive ion. c. losing protons. d. joining with both calcium and carbon.?
A: Gaining an electron
Electron transport chain pumps hydrogen ions to what space?
mitochondria inner membrane
Is an electron transport chain passive transport or active transport?
passive transport since the protons are moving down their concentration gradient back into the mitochondrial matrix.
What is responsible for pumping protons out of the mitochondrial matrix?
The inner mitochondrial membrane is impermeable to protons on its own, so the energy of the proton gradient is stable. This means that energy is needed to make the protons go somewhere, thereby continuing the electron transport system.
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.
What cellular compartment becomes acidic during mitochondrial electron transport?
The outer lumen of the mitochondria. All those protons being pumped into the outer lumen make it quite acidic.
Similarities between photophosphorylation and oxidative photophosphorylation?
The chemiosmosis theory postulates that living cells produce ATP from a proton gradient across a membrane by an enzyme called ATP synthase. Animals generate this proton gradient with the mitochondrial electron transport chain. When reductants (NADH, FADH2) give up their electrons to the electron transport chain, the electrons move to increasingly stronger oxidizing agents, using the released energy to pump protons across the mitochondrial inner membrane. Plants, however, generate the proton gradient directly with the photosystems and the photosynthetic electron transport chain. When the photosystem becomes excited, water is split into protons, oxygen and electrons. The electrons are then passed into the photosynthetic electron transport chain, which is analogous to the mitochondrial electron transport chain in that it also uses the energy of the oxidation reactions to pump protons across the thylakoid membrane. The end result is the same, however, because the proton gradient generates proton motive force, which is then used to synthesize ATP with ATP synthase.
Most of the energy extracted from food is stored in the molecules of NADH and FADH2 How is the energy released Explain.?
NADH and FADH2 are electron carriers (they store energy in the form of energetic electrons) and pass these electrons to the electron transport chain, which uses a series of redox reactions driven by the energetic electrons to pump protons across the inner mitochondrial membrane. The protons re-enter the mitochondrial matrix via ATP synthases, leading to the production of ATP - the energy currency of the cell.
Products of oxidative phosphorylation?
ATP is created by the movement of protons back into the mitochondrial matrix through complex V which is ATP synthase. The effect that electron transport has on oxidative phosphorylation is that the two processes are tightly coupled, stopping electron transport will ultimately stop oxidative phosphorylation.
What energy-producing process takes place in the mitochondria?
The electron transport chain uses energetic electrons to pump protons into the mitochondrial intermembrane space. The chemiosmotic process involving ATP synthase makes ATPs by taking advantage of the tendency of the protons to return to the mitochondrial matrix.
What is the function of oxygen in aerobic repsiration?
Oxygen serves as an electron acceptor. When food is completely metabolised in the organism, it is decomposed to electrons, protons and CO2. The electrons are carried by NADH to mitochondria, to electron-transport chain. At the end of the electron transport chain, oxygen receives electrons, thus providing for maximal yield of energy carried by those electrons (in the electron-transport chain, they are used for pumping protons across the mitochondrial membrane, thus proton gradient which empowers ATPase, is maintained). At last, the ATPase enzyme produces ATP, the usable form of energy.
What is the main biochemical function of the electronic transport chain?
The electron transport chain functions to move protons across the inner mitochondrial membrane.
What supplies electrons and protons to the electron transport chain?
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