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For fixing one molecule of CO2 in Calvin cycle, required
- a)3ATP+2NADPH2
- b)3ATP+1NADPH2
- c)2ATP+3NADPH2
- d)3ATP+3NADPH2
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
For fixing one molecule of CO2 in Calvin cycle, requireda)3ATP+2NADPH2...
Fixing of one molecule of carbon dioxide in Calvin cycle require 3 ATP and 2 NADPH2 as the source of energy. One NADPH2 molecule produce 3 molecules of ATP.
Most Upvoted Answer
For fixing one molecule of CO2 in Calvin cycle, requireda)3ATP+2NADPH2...
For fixing 6 molecules of CO2 in Calvin cycle(C3 cycle)..18 ATP and 12 NADPH2 are required..then for fixation of one molecule of CO2 ..3 ATP and 2 NADPH2 are required...so option A
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For fixing one molecule of CO2 in Calvin cycle, requireda)3ATP+2NADPH2...
Calvin cycle is a biochemical pathway that is responsible for fixing CO2 into organic compounds. It is a crucial process for plants and some bacteria for producing energy and organic molecules. The Calvin cycle consists of three stages: carbon fixation, reduction, and regeneration.
Carbon Fixation:
In this stage, CO2 is fixed into an organic molecule using the enzyme RuBisCO. The organic molecule produced is 3-phosphoglycerate (3PGA).
Reduction:
In this stage, ATP and NADPH2 are used to reduce 3PGA into glyceraldehyde-3-phosphate (G3P). The energy and reducing power are provided by ATP and NADPH2, respectively.
Regeneration:
In this stage, some of the G3P molecules are used to regenerate the starting molecule, RuBP (ribulose-1,5-bisphosphate). ATP is used to power this process.
From the above stages, we can see that for fixing one molecule of CO2 in the Calvin cycle, three ATP and two NADPH2 molecules are required. The ATP is used in the reduction and regeneration stages while NADPH2 is used only in the reduction stage. Therefore, the correct answer is option 'A'.
Carbon Fixation:
In this stage, CO2 is fixed into an organic molecule using the enzyme RuBisCO. The organic molecule produced is 3-phosphoglycerate (3PGA).
Reduction:
In this stage, ATP and NADPH2 are used to reduce 3PGA into glyceraldehyde-3-phosphate (G3P). The energy and reducing power are provided by ATP and NADPH2, respectively.
Regeneration:
In this stage, some of the G3P molecules are used to regenerate the starting molecule, RuBP (ribulose-1,5-bisphosphate). ATP is used to power this process.
From the above stages, we can see that for fixing one molecule of CO2 in the Calvin cycle, three ATP and two NADPH2 molecules are required. The ATP is used in the reduction and regeneration stages while NADPH2 is used only in the reduction stage. Therefore, the correct answer is option 'A'.
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For fixing one molecule of CO2 in Calvin cycle, requireda)3ATP+2NADPH2b)3ATP+1NADPH2c)2ATP+3NADPH2d)3ATP+3NADPH2Correct answer is option 'A'. Can you explain this answer?
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