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Which one of the following is incorrect about the activities associated with PSI and PSII in non-cyclic photophosphorylation?
- a)Water is oxidised in PS - II, but not in PS - I.
- b)Photons (light) are needed to activate both PS I and PS II.
- c)Photolysis of water and formation of ATP + NADPH occurs.
- d)Production of NADPH + H+ is associated with PS II, but not with PS I.
Correct answer is option 'D'. Can you explain this answer?
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Which one of the following is incorrect about the activities associate...
Photosystem(PS) I and II are two pigments system of light reaction. Non-cyclic photophosphorylation is the light-requiring part of photosynthesis in higher plants, in which an electron donor is required, and oxygen is produced as a waste product. It consists of two photoreactions, resulting in the synthesis of ATP and NADPH2,. The hydrogen needed for the reduction of NADP (nicotinamide adenine dinucleotide phosphate) is made available from the breakdown of water.
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Which one of the following is incorrect about the activities associate...
Explanation:
Non-cyclic photophosphorylation is the process of converting light energy to chemical energy by the transfer of electrons from water to NADP+.
Activities associated with PSI and PSII in non-cyclic photophosphorylation:
1. Water is oxidized in PS-II, but not in PS-I: In PS-II, water is oxidized to produce oxygen, protons (H+), and electrons (e-) which are used to generate ATP. In PS-I, the electrons are used to reduce NADP+ to NADPH.
2. Photons (light) are needed to activate both PS-I and PS-II: Light energy is absorbed by pigments (chlorophylls and carotenoids) associated with both PS-I and PS-II. The absorbed energy is used to excite electrons to a higher energy level, which are then transferred through a series of electron carriers.
3. Photolysis of water and formation of ATP and NADPH occurs: Water is photolyzed in PS-II to produce oxygen, protons (H+), and electrons (e-), which are used to generate ATP through the process of chemiosmosis. The electrons are then transferred to PS-I where they reduce NADP+ to NADPH.
4. Production of NADPH and H+ is associated with PS-II, but not with PS-I: PS-II generates NADPH and H+ as a result of the photolysis of water and the transfer of electrons through a series of electron carriers. PS-I only generates NADPH by the transfer of electrons from ferredoxin to NADP+.
Therefore, option 'D' is incorrect as it states that the production of NADPH and H+ is associated with PS-II, but not with PS-I, whereas, in reality, PS-I also generates NADPH.
Non-cyclic photophosphorylation is the process of converting light energy to chemical energy by the transfer of electrons from water to NADP+.
Activities associated with PSI and PSII in non-cyclic photophosphorylation:
1. Water is oxidized in PS-II, but not in PS-I: In PS-II, water is oxidized to produce oxygen, protons (H+), and electrons (e-) which are used to generate ATP. In PS-I, the electrons are used to reduce NADP+ to NADPH.
2. Photons (light) are needed to activate both PS-I and PS-II: Light energy is absorbed by pigments (chlorophylls and carotenoids) associated with both PS-I and PS-II. The absorbed energy is used to excite electrons to a higher energy level, which are then transferred through a series of electron carriers.
3. Photolysis of water and formation of ATP and NADPH occurs: Water is photolyzed in PS-II to produce oxygen, protons (H+), and electrons (e-), which are used to generate ATP through the process of chemiosmosis. The electrons are then transferred to PS-I where they reduce NADP+ to NADPH.
4. Production of NADPH and H+ is associated with PS-II, but not with PS-I: PS-II generates NADPH and H+ as a result of the photolysis of water and the transfer of electrons through a series of electron carriers. PS-I only generates NADPH by the transfer of electrons from ferredoxin to NADP+.
Therefore, option 'D' is incorrect as it states that the production of NADPH and H+ is associated with PS-II, but not with PS-I, whereas, in reality, PS-I also generates NADPH.
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Which one of the following is incorrect about the activities associate...
In option D. the photo lysis of water occur during Z skim means ps11 and ps1 also take plase in this reaction and also gave us nadpH+H+ &Atp
there for ps11 and ps1 bothe required
there for ps11 and ps1 bothe required
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Which one of the following is incorrect about the activities associated with PSI and PSII in non-cyclic photophosphorylation?a)Water is oxidised in PS - II, but not in PS - I.b)Photons (light) are needed to activate both PS I and PS II.c)Photolysis of water and formation of ATP + NADPH occurs.d)Production of NADPH + H+ is associated with PS II, but not with PS I.Correct answer is option 'D'. Can you explain this answer?
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Which one of the following is incorrect about the activities associated with PSI and PSII in non-cyclic photophosphorylation?a)Water is oxidised in PS - II, but not in PS - I.b)Photons (light) are needed to activate both PS I and PS II.c)Photolysis of water and formation of ATP + NADPH occurs.d)Production of NADPH + H+ is associated with PS II, but not with PS I.Correct answer is option 'D'. 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 Which one of the following is incorrect about the activities associated with PSI and PSII in non-cyclic photophosphorylation?a)Water is oxidised in PS - II, but not in PS - I.b)Photons (light) are needed to activate both PS I and PS II.c)Photolysis of water and formation of ATP + NADPH occurs.d)Production of NADPH + H+ is associated with PS II, but not with PS I.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following is incorrect about the activities associated with PSI and PSII in non-cyclic photophosphorylation?a)Water is oxidised in PS - II, but not in PS - I.b)Photons (light) are needed to activate both PS I and PS II.c)Photolysis of water and formation of ATP + NADPH occurs.d)Production of NADPH + H+ is associated with PS II, but not with PS I.Correct answer is option 'D'. Can you explain this answer?.
Which one of the following is incorrect about the activities associated with PSI and PSII in non-cyclic photophosphorylation?a)Water is oxidised in PS - II, but not in PS - I.b)Photons (light) are needed to activate both PS I and PS II.c)Photolysis of water and formation of ATP + NADPH occurs.d)Production of NADPH + H+ is associated with PS II, but not with PS I.Correct answer is option 'D'. 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 Which one of the following is incorrect about the activities associated with PSI and PSII in non-cyclic photophosphorylation?a)Water is oxidised in PS - II, but not in PS - I.b)Photons (light) are needed to activate both PS I and PS II.c)Photolysis of water and formation of ATP + NADPH occurs.d)Production of NADPH + H+ is associated with PS II, but not with PS I.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following is incorrect about the activities associated with PSI and PSII in non-cyclic photophosphorylation?a)Water is oxidised in PS - II, but not in PS - I.b)Photons (light) are needed to activate both PS I and PS II.c)Photolysis of water and formation of ATP + NADPH occurs.d)Production of NADPH + H+ is associated with PS II, but not with PS I.Correct answer is option 'D'. Can you explain this answer?.
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