Find the incorrect statement(s) about photosynthesis from the following: A. The water splitting complex is associated with PS I. B. C4 plants use the C3 pathway of CO2 fixation as the main biosynthetic pathway. C. In C4 plants, photorespiration does not occur. D. C3 plants exhibit 'Kranz' anatomy. E. ATP synthesis in chloroplast occurs through chemiosmosis. Choose the answer from the options given below:

Solution & Explanation

Statement A is incorrect: the water-splitting (oxygen-evolving) complex is associated with PS II, not PS I. Statement D is incorrect: it is C4 plants, not C3 plants, that exhibit 'Kranz' anatomy. Statements B (C4 plants use the C3/Calvin pathway as the main biosynthetic pathway), C (no photorespiration in C4 plants) and E (chloroplast ATP synthesis by chemiosmosis) are all correct. So the incorrect statements are A and D only. NCERT: Class 11 Ch 11, p.139 [139:049]: "We need to emphasise here that the water splitting complex is associated"