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The excitation of electrons,finally down-hill to NADP+ causing it tobe reduced to NADPH+2 is
- a)Redox potential
- b)ATP
- c)Z scheme
- d)Cytochromes
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The excitation of electrons,finally down-hill toNADP+causing it tobe r...
Excitation of electrons, transfer to another accepter, and finally down-hill to NADP+ causing it to be reduced to NADPH+ H+ is called the Z scheme.
Most Upvoted Answer
The excitation of electrons,finally down-hill toNADP+causing it tobe r...
Understanding the Z Scheme
The Z scheme is a crucial concept in photosynthesis, illustrating the flow of electrons during the light-dependent reactions.
Electrons in Photosynthesis
- Source of Electrons: Light energy excites electrons in chlorophyll, leading to their transfer through a series of proteins in the thylakoid membrane.
- Down-Hill Movement: As electrons move through these proteins, they undergo a series of redox reactions, losing energy at each step. This energy is utilized to pump protons across the thylakoid membrane, creating a proton gradient.
Reduction of NADP+
- Final Electron Acceptor: At the end of the electron transport chain, electrons are transferred to NADP+, reducing it to NADPH. This reduction is crucial for the Calvin cycle, where NADPH is used to convert carbon dioxide into glucose.
- NADPH Generation: The formation of NADPH represents a key energy-carrying molecule, which stores energy in the form of high-energy electrons.
Role of Cytochromes
- Electron Transport Components: Cytochromes are essential proteins involved in the electron transport chain. They facilitate electron transfer between different complexes and are pivotal in maintaining the flow of electrons through the Z scheme.
Key Takeaway
The Z scheme effectively describes how light energy is converted into chemical energy through the excitation and transport of electrons, culminating in the reduction of NADP+ to NADPH. This process is fundamental for the energy transformations that support life on Earth.
The Z scheme is a crucial concept in photosynthesis, illustrating the flow of electrons during the light-dependent reactions.
Electrons in Photosynthesis
- Source of Electrons: Light energy excites electrons in chlorophyll, leading to their transfer through a series of proteins in the thylakoid membrane.
- Down-Hill Movement: As electrons move through these proteins, they undergo a series of redox reactions, losing energy at each step. This energy is utilized to pump protons across the thylakoid membrane, creating a proton gradient.
Reduction of NADP+
- Final Electron Acceptor: At the end of the electron transport chain, electrons are transferred to NADP+, reducing it to NADPH. This reduction is crucial for the Calvin cycle, where NADPH is used to convert carbon dioxide into glucose.
- NADPH Generation: The formation of NADPH represents a key energy-carrying molecule, which stores energy in the form of high-energy electrons.
Role of Cytochromes
- Electron Transport Components: Cytochromes are essential proteins involved in the electron transport chain. They facilitate electron transfer between different complexes and are pivotal in maintaining the flow of electrons through the Z scheme.
Key Takeaway
The Z scheme effectively describes how light energy is converted into chemical energy through the excitation and transport of electrons, culminating in the reduction of NADP+ to NADPH. This process is fundamental for the energy transformations that support life on Earth.
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The excitation of electrons,finally down-hill toNADP+causing it tobe reduced toNADPH+2isa)Redox potentialb)ATPc)Z schemed)CytochromesCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The excitation of electrons,finally down-hill toNADP+causing it tobe reduced toNADPH+2isa)Redox potentialb)ATPc)Z schemed)CytochromesCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The excitation of electrons,finally down-hill toNADP+causing it tobe reduced toNADPH+2isa)Redox potentialb)ATPc)Z schemed)CytochromesCorrect answer is option 'C'. Can you explain this answer?.
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