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Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on
- a)Accumulation of Nat+ ions
- b)Accumulation of Kt+ ions
- c)Proton gradient
- d)Membrane potential
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochond...
Due to the following reasons , there occurs a proton gradient in the lumen of thylakoid -
1. splitting of water
2. transport of electrons between photosystems at the inter membrane space
3. NADP reductase enzyme is located on the stroma.
1. splitting of water
2. transport of electrons between photosystems at the inter membrane space
3. NADP reductase enzyme is located on the stroma.
Community Answer
Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochond...
Chemiosmotic Theory of ATP Synthesis in Chloroplasts and Mitochondria
The chemiosmotic theory of ATP synthesis in chloroplasts and mitochondria is based on the concept of a proton gradient.
Proton Gradient
- The proton gradient is generated by the pumping of protons across the inner membrane of the organelles during the electron transport chain.
- In mitochondria, protons are pumped from the matrix to the intermembrane space, while in chloroplasts, protons are pumped from the stroma to the thylakoid lumen.
- This creates an electrochemical gradient with a higher concentration of protons on one side of the membrane compared to the other.
ATP Synthesis
- The proton gradient established by the electron transport chain drives the synthesis of ATP through the enzyme ATP synthase.
- ATP synthase allows protons to flow back across the membrane, using the energy released to catalyze the synthesis of ATP from ADP and inorganic phosphate.
- This process is known as oxidative phosphorylation in mitochondria and photophosphorylation in chloroplasts.
- The flow of protons through ATP synthase is coupled to the phosphorylation of ADP, producing ATP.
Significance
- The chemiosmotic theory provides a mechanism for the generation of ATP in chloroplasts and mitochondria by linking electron transport with ATP synthesis.
- It explains how the energy from electron transport is used to establish a proton gradient, which in turn drives ATP production.
- This process is essential for cellular energy production and is a fundamental principle in bioenergetics.
The chemiosmotic theory of ATP synthesis in chloroplasts and mitochondria is based on the concept of a proton gradient.
Proton Gradient
- The proton gradient is generated by the pumping of protons across the inner membrane of the organelles during the electron transport chain.
- In mitochondria, protons are pumped from the matrix to the intermembrane space, while in chloroplasts, protons are pumped from the stroma to the thylakoid lumen.
- This creates an electrochemical gradient with a higher concentration of protons on one side of the membrane compared to the other.
ATP Synthesis
- The proton gradient established by the electron transport chain drives the synthesis of ATP through the enzyme ATP synthase.
- ATP synthase allows protons to flow back across the membrane, using the energy released to catalyze the synthesis of ATP from ADP and inorganic phosphate.
- This process is known as oxidative phosphorylation in mitochondria and photophosphorylation in chloroplasts.
- The flow of protons through ATP synthase is coupled to the phosphorylation of ADP, producing ATP.
Significance
- The chemiosmotic theory provides a mechanism for the generation of ATP in chloroplasts and mitochondria by linking electron transport with ATP synthesis.
- It explains how the energy from electron transport is used to establish a proton gradient, which in turn drives ATP production.
- This process is essential for cellular energy production and is a fundamental principle in bioenergetics.
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Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based ona)Accumulation of Nat+ ionsb)Accumulation of Kt+ionsc)Proton gradientd)Membrane potentialCorrect answer is option 'C'. Can you explain this answer?
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Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based ona)Accumulation of Nat+ ionsb)Accumulation of Kt+ionsc)Proton gradientd)Membrane potentialCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based ona)Accumulation of Nat+ ionsb)Accumulation of Kt+ionsc)Proton gradientd)Membrane potentialCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based ona)Accumulation of Nat+ ionsb)Accumulation of Kt+ionsc)Proton gradientd)Membrane potentialCorrect answer is option 'C'. Can you explain this answer?.
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