JAMB 1978
Given the equation: 6CO\(_2\) + 6H\(_2\)O → C\(_6\)H\(_{12}\)O\(_6\) + 6O\(_2\) (Under sunlight & Chlorophyll) The oxygen given off during the above process is derived from
- Asunlight
- Bchlorophyll
- Ccarbon dioxide
- Datmosphere
- Ewater
Explanation
Isotopic tracer experiments (using O-18) by Ruben and Kamen proved that the oxygen gas released during photosynthesis comes exclusively from the splitting of water molecules (photolysis), not from carbon dioxide.
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