Analyse the illustration related to photosynthesis and answer the questions
oxygen is present in water and carbondioxide
oxygen is released as a result of photosynthesis
a) Which is the sourse of oxygen released ? b) In which stage does this process takes place?
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Answer:
a) oxygen evolved in photosynthesis comes from water not carbon dioxide
b) oxygen is evolved during non cyclic photophosphorylation
Explanation:
a) this was confirmed by Ruben and kamen when they used radio isotope of oxygen O18
so this equation was seen (it's above)
b) due to splitting of water as oxygen evolving complex is present in the inner side of the thylakoid memmrane
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