Question

which step of photosynthesis is responsible forevolution of molecular oxygen?

Answer 1

Answer:

The two photosystems responsible for charge transfer, oxygen evolution, and NADP+ reduction/CO2 fixation in oxygenic photosynthesis are arranged in a linear electron transfer chain (Figure 2) in which electron transfer is initiated by water serving as the electron donor to the PSII reaction center.

Answer 2

Answer:

The two photosystems responsible for charge transfer, oxygen evolution, and NADP+ reduction/CO2 fixation in oxygenic photosynthesis are arranged in a linear electron transfer chain in which electron transfer is initiated by water serving as the electron donor to the PSII reaction center.Photosystem II obtains replacement electrons from water molecules, resulting in their split into hydrogen ions (H+) and oxygen atoms. The oxygen atoms combine to form molecular oxygen (O2), which is released into the atmosphere.