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Question
If photosynthesizing green algae are provided with Co2 synthesized with heavy oxygen(^{18}O$, later analusis will show that all but on of the following compunds produced by the algae contain the ^{18} label. That one is
If photosynthesizing green algae are provided with Co2 synthesized with heavy oxygen(^{18}O$, later analusis will show that all but on of the following compunds produced by the algae contain the ^{18} label. That one is
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Solution
The correct option is B PGAL
During plant photosynthesis, 2 equivalents of glycerate 3-phosphate (GP; also known as 3-phosphoglycerate) are produced by the first step of the light-independent reactions when ribulose 1,5-bisphosphate (RuBP) and carbon dioxide are catalyzed by the rubisco enzyme. The GP is converted to D-glyceraldehyde 3-phosphate (G3P) using the energy in ATP and the reducing power of NADPH as part of the Calvin cycle. This returns ADP, phosphate ions Pi, and NADP+ to the light-dependent reactions of photosynthesis for their continued function. RuBP is regenerated for the Calvin cycle to continue.So the correct option is 'PGAL'.
During plant photosynthesis, 2 equivalents of glycerate 3-phosphate (GP; also known as 3-phosphoglycerate) are produced by the first step of the light-independent reactions when ribulose 1,5-bisphosphate (RuBP) and carbon dioxide are catalyzed by the rubisco enzyme. The GP is converted to D-glyceraldehyde 3-phosphate (G3P) using the energy in ATP and the reducing power of NADPH as part of the Calvin cycle. This returns ADP, phosphate ions Pi, and NADP+ to the light-dependent reactions of photosynthesis for their continued function. RuBP is regenerated for the Calvin cycle to continue.
So the correct option is 'PGAL'.
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