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Non-cyclic photophosphorylation produces...

Non-cyclic photophosphorylation produces
(i) NADPH
(ii) ATP and `O_(2)`
(iii) ATP only
(iv) `O_(2)` only
Codes:

A

(i), (ii) and (iii) are correct

B

(iii) (i) and (ii) are correct

C

(iii) (ii) and (iv) are correct

D

(i) and (ii) are correct

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding what non-cyclic photophosphorylation produces, we can break down the process step by step: ### Step-by-Step Solution: 1. **Understanding Non-Cyclic Photophosphorylation**: - Non-cyclic photophosphorylation is a light-dependent reaction in photosynthesis that occurs in the thylakoid membranes of chloroplasts. It involves the absorption of light energy to produce ATP and NADPH. 2. **Identifying the Products**: - During this process, water (H₂O) is split (photolysis) to release electrons, protons, and oxygen (O₂). The electrons are then transferred through a series of proteins in the thylakoid membrane (the electron transport chain). 3. **Formation of ATP**: - As electrons move through the electron transport chain, their energy is used to pump protons into the thylakoid lumen, creating a proton gradient. This gradient drives ATP synthase to produce ATP from ADP and inorganic phosphate (Pi). 4. **Formation of NADPH**: - The electrons eventually reduce NADP⁺ to form NADPH, which is used in the Calvin cycle for synthesizing glucose. 5. **Waste Product**: - Oxygen is released as a byproduct of the splitting of water. 6. **Conclusion**: - Therefore, the net products of non-cyclic photophosphorylation are NADPH, ATP, and O₂. ### Final Answer: The correct options are (i) NADPH and (ii) ATP and O₂. Thus, the answer includes both NADPH and ATP along with oxygen.
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