question_answer

Which is the evidence to show that\[{{O}_{2}}\]is released in photosynthesis comes from water [CPMT 1988]

A) Isotopic\[{{O}_{2}}\]supplied as\[{{H}_{2}}O\]appears in the\[{{O}_{2}}\]released in photosynthesis

B) Isolated chloroplast in water releases\[{{O}_{2}}\] if supplied potassium ferrocyanide or some other reducing agent

C) Photosynthetic bacteria use \[{{H}_{2}}S\]and \[C{{O}_{2}}\]to make carbohydrates

D) All the above