NEETBotanyPhotosynthesis in Higher Plants
Choose the incorrect statement regarding the diagram given below.
Options
- ACarboxylation is the most crucial step of the Calvin cycle where CO 2 is utilised for the carboxylation of RuB
- BThe fixation of six molecules of CO 2 and 6 turns of the cycle are required for the formation of one molecule
- CFor every CO 2 molecule entering the Calvin cycle, 3 molecules of ATP and 2 of NADPH are required.
- DThe Calvin pathway may not occur in all photosynthetic plants; it does not matter whether they have C 3 or C 4
Correct answer
D. The Calvin pathway may not occur in all photosynthetic plants; it does not matter whether they have C 3 or C 4
Step-by-step solution
Let us at the outset understand very clearly that the Calvin pathway occurs in all photosynthetic plants; it does not matter whether they have C 3 or C 4 (or any other) pathways (Figure 11.8). 1. Carboxylation– Carboxylation is the fixation of CO 2 into a stable organic intermediate. Carboxylation is the most crucial step of the Calvin cycle where CO 2 is utilised for the carboxylation of RuBP. 2. Reduction – These are a series of reactions that lead to the formation of glucose. The steps involve utilisation of 2 m