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PGA as the first CO2 fixation product was discovered in photosynthesis of
- a)bryophyte
- b)gymnosperm
- c)angiosperm
- d)alga
Correct answer is option 'D'. Can you explain this answer?
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PGA as the first CO2 fixation product was discovered in photosynthesi...
Calvin, Benson and their colleagues in California, U.S.A. fed Chlorella and Scenedesmus with radioactive 14C in carbon dioxide. Radioactive carbon, 14C has a half life of 5568 years. Therefore, the path of CO2 fixation can be easily traced with its help. Algal suspension, illuminated and carrying out photosynthesis with normal carbon dioxide, was supplied 14CO2. The alga was killed at intervals in near boiling methanol. It immediately stopped photosynthesis activity due to denaturation of enzymes. Alcohol was evaporated and after crushing the alga, the product was made into paste. The paste was placed on paper chromatogram and the different compounds were separated by two dimensional chromatography. The radioactive compounds were identified by comparing their position on the chromatogram with standard chemicals. Calvin and co-workers found that after three seconds, radioactivity appeared in phosphoglyceric acid or PGA. Phosphoglyceric acid is, therefore, the first stable product of photosynthesis.
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PGA as the first CO2 fixation product was discovered in photosynthesis ofa)bryophyteb)gymnospermc)angiospermd)algaCorrect answer is option 'D'. Can you explain this answer?
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PGA as the first CO2 fixation product was discovered in photosynthesis ofa)bryophyteb)gymnospermc)angiospermd)algaCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about PGA as the first CO2 fixation product was discovered in photosynthesis ofa)bryophyteb)gymnospermc)angiospermd)algaCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for PGA as the first CO2 fixation product was discovered in photosynthesis ofa)bryophyteb)gymnospermc)angiospermd)algaCorrect answer is option 'D'. Can you explain this answer?.
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