NEETBotanyPhotosynthesis in Higher Plants
Read the following statements regarding the products of the light reaction: (A) Oxygen is released into the thylakoid lumen and eventually diffuses out of the chloroplast. (B) ATP is synthesized on the stroma side of the thylakoid membrane and remains in the chloroplast. (C) NADPH is transported into the cytoplasm to drive the synthesis of sugars. (D) The biosynthetic phase depends directly on the products of the lig
Options
- AThree
- BFour
- CTwo
- DOne
Correct answer
A. Three
Step-by-step solution
Statement (A) is correct because the water-splitting complex is located on the inner side of the thylakoid membrane, releasing oxygen into the lumen, which then diffuses out of the chloroplast. Statement (B) is correct as the CF₁ portion of ATP synthase protrudes towards the stroma, releasing ATP into the stroma where it is retained for the dark reaction. Statement (C) is incorrect because NADPH is produced on the stroma side by NADP reductase and is utilized within the stroma itself for the Calvin cycle; it is not