Which of the following statement is true with regarding to light reaction of photosynthetic mechanism in plants ?
| A. |
Chlorophyll - a occurs with peak absorption at 680 nm in photosystem-I and at 700 nm in photosystem-II |
| B. |
Magnesium and sodium ions are associated with photolysis of water molecules |
| C. |
`O_2` is evolved during cyclic photophosphorylation |
| D. |
Photosystem-I and II are both involved in non-cyclic photophosphorylation |
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