DENDROLOGY

Detailed explanation-1: -1: Photosystem I I: In the photosystem II (PSII) reaction center, energy from sunlight is used to extract electrons from water. The electrons travel through the chloroplast electron transport chain to photosystem I (PSI), which reduces NADP+ to NADPH .

Detailed explanation-2: -In photosystem II, enzymes absorb the photons of light to energise the electrons. The energised electrons then travel through a series of cofactors and coenzymes to reduce plastoquinone to plastoquinol. The energised electrons also replace the oxidising water to form molecular oxygen and hydrogen ions.