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Which parts of the mitochondria are directly involved in the synthesis of ATP during chemiosmosis?
The inner mitochondrial membrane and the enzyme complex ATP synthase are directly involved in the synthesis of ATP during chemiosmosis. Protons are pumped across the inner mitochondrial membrane, creating a proton gradient that drives the production of ATP by ATP synthase through oxidative phosphorylation.
What Happens when electrons are passed down electron transport chain?
Hydrogen ions are pumped across the mitochondria's inner membrane producing a concentration gradient
The movement of protons during ATP production is called what?
The movement of protons during ATP production is called chemiosmosis. In this process, protons are pumped across a membrane, creating an electrochemical gradient that drives ATP synthesis.
When hydrogen ions are pumped from the mitochondrial matrix across the inner membrane and into the intermembrane space the result is?
Hydrogen ions are pumped through the membrane in the final stage of ATP generation in the electron transport chain. The ions pumped through the membrane create a gradient and cause the hydrogen to "want" to pass back through the membrane. They do so through the protein channels in the membrane and attaches a phosphate to adenosine diphosphate to make adenosine triphosphate.
Why does fadh2 produce fewer ATP molecules than nadh?
NADH produces 3 ATPs because it donates the proton at a "higher" location in the electron transport chain than does FADH2, which is why FADH2 produce only 2 ATPs. NADH and FADH2 donates electrons and protons into the electron transport chain.
What ion is pumped across the inner membrane in the ETC?
Protons (H+ ions) are pumped across the inner mitochondrial membrane during electron transport in the electron transport chain (ETC). This creates a proton gradient that is used to generate ATP via ATP synthase.
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.
How does the cell use the charge differences that build up across the inner mitochondrial membrane during cellular respiration?
The charge differences across the inner mitochondrial membrane are used to generate ATP through a process called chemiosmosis. Protons are pumped across the membrane, creating a proton gradient. As protons flow back across the membrane through ATP synthase, ATP is produced. This process is essential for providing energy to the cell.
Does the generation of proton gradients across membranes occur in both potosynthesis and respiration?
Yes, the generation of proton gradients across membranes occurs in both photosynthesis and respiration. In photosynthesis, protons are pumped across the thylakoid membrane during the light reactions. In respiration, protons are pumped across the inner mitochondrial membrane during the electron transport chain.
Which parts of the mitochondria are directly involved in the synthesis of ATP during chemiosmosis?
The inner mitochondrial membrane and the enzyme complex ATP synthase are directly involved in the synthesis of ATP during chemiosmosis. Protons are pumped across the inner mitochondrial membrane, creating a proton gradient that drives the production of ATP by ATP synthase through oxidative phosphorylation.
What is the proxomite source of energy for oxidative phosphorylation?
The proximate source of energy for oxidative phosphorylation is the proton gradient across the inner mitochondrial membrane. This gradient is established during the electron transport chain as electrons are passed along and protons are pumped across the membrane. The flow of protons back into the matrix through ATP synthase drives the production of ATP.
What causes an area of the inner membrane to become positively charged?
An area of the inner mitochondrial membrane becomes positively charged as a result of the electron transport chain process during cellular respiration. During this process, protons are pumped across the inner membrane, creating an electrochemical gradient with a higher concentration of protons in the intermembrane space compared to the mitochondrial matrix. This results in a positively charged intermembrane space and a negatively charged matrix.
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 are the main events of electron transport?
Electrons are passed along a series of protein complexes embedded in the inner mitochondrial membrane. As electrons move through the complexes, protons are pumped across the membrane creating an electrochemical gradient. Ultimately, the electrons are accepted by oxygen to form water.
What Happens when electrons are passed down electron transport chain?
Hydrogen ions are pumped across the mitochondria's inner membrane producing a concentration gradient
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.
Which ion ends up in the intermembrane space during electron transport chain?
Protons (H+ ions) end up in the intermembrane space during the electron transport chain. These protons are pumped across the inner mitochondrial membrane from the matrix to the intermembrane space as electrons flow through the electron transport chain.
