Ncert Exercises & Solutions

Six turns of Calvin cycle are required to generate one mole of glucose. Explain.

Ribulose 5 phosphate is afive carbon compound which accepts atmospheric CO₂ in presence of RuBisCo and form 2 molecules of 3PGA, a^3c carbon compound. It uses 3 ATP and 2 NADPH to fix one molecule of CO₂ per cycle of Calvin.

So, to fix 6 CO₂ molecules to form 6 carbon compound glucose 6 cycles are required as mentioned below.