NEET Botany Question (2026) — Solution

Step-by-step solution

One turn of the Calvin cycle fixes one molecule of CO_2. To synthesize one molecule of glucose (C_6H_ 12 O_6), six molecules of CO_2 are required. Thus, six turns of the Calvin cycle are required to produce one molecule of glucose. For the formation of three molecules of glucose, the number of turns required is 3 6 = 18. Answer: 18