Question

multiple choice question
at photosystem ii, the splitting of water by an enzyme embedded with manganese atoms results in the release of
○ chlorophyll a.
○ atp.
○ oxygen.
○ nadph.

Explanation:

In photosystem II, the water - splitting complex (with an enzyme embedded with manganese atoms) splits water molecules ($\ce{H_2O}$). The reaction of water splitting is $\ce{2H_2O -> 4H^+ + 4e^- + O_2}$. So, this process results in the release of oxygen. Chlorophyll a is a pigment involved in light absorption, not a product of water splitting. ATP is produced in the light - dependent reactions mainly through the electron transport chain and chemiosmosis, not directly from water splitting. NADPH is formed when electrons from the electron transport chain are used to reduce $\ce{NADP^+}$, and it is not a direct product of water splitting.

Answer:

C. oxygen