Which sentence best describes the production of oxygen gas (0₂) by one of
the light reactions?
O
O
A. ATP molecules made by the thylakoids react with water molecules
to produce O atoms and H* ions.
B. Energized electrons from chlorophyll are transferred to water
molecules, releasing oxygen gas (0₂).
C. Hydrogen ions (H*) build up inside the thylakoids until they cause
water molecules to split into atoms of O and H.
OD. Photons of light absorbed by chlorophyll provide the energy to
split water molecules, forming O2 and H+.