What happens to the electron captured by pigment molecules in photosystem 1?

In photosystem I, the primary function involves the absorption of light energy, which excites electrons within pigment molecules, primarily chlorophyll. When an electron is captured by these pigment molecules, it does not remain in chlorophyll or get stored; rather, it is transferred to another electron transport chain, commonly referred to as the second short electron transport chain.

This transfer supports the process of photophosphorylation, contributing to the production of NADPH, which is essential for the Calvin cycle in photosynthesis. The subsequent flow of electrons through this transport chain helps in synthesizing energy-rich molecules vital for the plant's metabolic processes. This mechanism is crucial for converting solar energy into chemical energy, which ultimately sustains the plant and, by extension, the broader ecosystem.