Question

Where does Photo System I get the electrons from?

Answer 1

hey mate !!!

Photosystem I is really the second photosystem. When light photons excite the pigments in the light-harvesting complexes of the photosystem, their electrons get excited. This energy is passed along from pigment molecule to pigment molecule until it reaches a special pair of chlorophyll molecules which instead of transferring their energy, transfer their electrons to the "final electron acceptor."

Photosystem I is really the second photosystem. When light photons excite the pigments in the light-harvesting complexes of the photosystem, their electrons get excited. This energy is passed along from pigment molecule to pigment molecule until it reaches a special pair of chlorophyll molecules which instead of transferring their energy, transfer their electrons to the "final electron acceptor."These two special chlorophyll molecules, called P700 for Photosystem I, are then electron deficient. The electrons asked about in the questions are the ones that now come to replenish the P700 pigments to the cycle can be repeated.

Photosystem I is really the second photosystem. When light photons excite the pigments in the light-harvesting complexes of the photosystem, their electrons get excited. This energy is passed along from pigment molecule to pigment molecule until it reaches a special pair of chlorophyll molecules which instead of transferring their energy, transfer their electrons to the "final electron acceptor."These two special chlorophyll molecules, called P700 for Photosystem I, are then electron deficient. The electrons asked about in the questions are the ones that now come to replenish the P700 pigments to the cycle can be repeated.These electrons come from the process the directly proceeds Photosystem I, which is the electron transport chain.