The Oxygen Evolving Center

question 44

Multiple Choice

The oxygen evolving center
(I) is a part of PSI known as the water splitting enzyme.
(II) breaks two H₂O molecules into four protons,four electrons and O₂.
(III) requires four light-dependent reactions to generate O₂.
(IV) frees an electron from oxygen for replacement of the photooxidized electron in P680.

• A)I,II,III,IV
• B)I,II
• C)II,III,IV
• D)II,III
• E)I,IV

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