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Protons are pumped into the intermembrane space of the mitochondria during cellular respiration, specifically through the activity of the electron transport chain (ETC). As electrons are transferred through a series of protein complexes (I, II, III, and IV) in the inner mitochondrial membrane, their energy is used to actively transport protons from the mitochondrial matrix into the intermembrane space. This creates a proton gradient, which is essential for ATP synthesis, as protons flow back into the matrix through ATP synthase, driving the conversion of ADP to ATP.

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Where is hydrogen actively pumped in the mitochondria?

In mitochondria, hydrogen ions (protons) are actively pumped into the intermembrane space from the mitochondrial matrix during the electron transport chain process. This occurs primarily through the action of complexes I, III, and IV, which utilize the energy released from electron transfers to move protons across the inner mitochondrial membrane. The accumulation of protons in the intermembrane space creates a proton gradient, which drives ATP synthesis through ATP synthase as protons flow back into the matrix.


Does the stroma separate the inner and outer membranes of the mitochondria?

No, the stroma is found in chloroplasts, not mitochondria. In mitochondria, the inner and outer membranes are separated by the intermembrane space.


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 are mitochondria surrounded by?

Mitochondria are surrounded by membranes.They have two membranes.


Does mitochondria raise or lower the pH of the region of the cell that they are in?

Mitochondria lower the pH of the region of the cell they are in. They do this by pumping protons out of the mitochondrial matrix into the intermembrane space, creating an electrochemical gradient. This gradient is essential for ATP production.

Related Questions

Electron transport chain pumps hydrogen ions to what space?

mitochondria inner membrane


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


Where is hydrogen actively pumped in the mitochondria?

In mitochondria, hydrogen ions (protons) are actively pumped into the intermembrane space from the mitochondrial matrix during the electron transport chain process. This occurs primarily through the action of complexes I, III, and IV, which utilize the energy released from electron transfers to move protons across the inner mitochondrial membrane. The accumulation of protons in the intermembrane space creates a proton gradient, which drives ATP synthesis through ATP synthase as protons flow back into the matrix.


What part of the mitochondria stores a high concentration of H plus ions?

The intermembrane space of the mitochondria stores a high concentration of H plus ions. This creates a proton gradient that drives the production of ATP through oxidative phosphorylation.


Does the stroma separate the inner and outer membranes of the mitochondria?

No, the stroma is found in chloroplasts, not mitochondria. In mitochondria, the inner and outer membranes are separated by the intermembrane space.


How is energy in the electron transport system temporarily stored?

By pumping protons into intermembrane space


What is inter membrane space?

The intermembrane space is the region between the inner and outer membranes of a mitochondrion. It plays a role in the production of ATP through the process of oxidative phosphorylation. Protons are pumped into the intermembrane space during electron transport chain reactions, creating a proton gradient that drives ATP synthesis in the mitochondria.


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 is in mitochondria?

Mitochondria (singular: mitochondrion) have two membranes, with an intermembrane space between them. The inner membrane is folded to form cristae. The space inside the mitochondria is known as the matrix and is where the reactions happen to make ATP.


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.


What are mitochondria surrounded by?

Mitochondria are surrounded by membranes.They have two membranes.


What is Mitochondria (mitochondrion)?

Mitochondria (singular: mitochondrion) have two membranes, with an intermembrane space between them. The inner membrane is folded to form cristae. The space inside the mitochondria is known as the matrix and is where the reactions happen to make ATP.