NEET2026BotanyPhotosynthesis in Higher PlantsActual
Find the incorrect statement(s) about photosynthesis from the following : A. The water splitting complex is associated with PS I. B. C ₄ plants use the C ₃ pathway of CO ₂ fixation as the main biosynthetic pathway. C. In C ₄ plants, photorespiration does not occur. D. C ₃ plants exhibit 'Kranz' anatomy. E. ATP synthesis in chloroplast occurs through chemiosmosis. Choose the answer from the options given below :
Options
- AB and C only
- BB only
- CB and E only
- DA and D only
Correct answer
D. A and D only
Step-by-step solution
Statement A is incorrect because the water splitting complex is associated with PS II, not PS I. Statement B is correct because the Calvin cycle ( C ₃ pathway) is the main biosynthetic pathway for all plants, including C ₄ plants. Statement C is correct because C ₄ plants have a mechanism that increases the concentration of CO ₂ at the enzyme site, preventing RuBisCO from acting as an oxygenase, thus avoiding photorespiration. Statement D is incorrect because Kranz anatomy is a characteristic feature of C ₄ plants,