Because electrons are obtained from water. Process is called photolysis
They come from Photosystem ll. Photosystem ll gets them by ripping the electrons off of water by a process called photolysis. Electrons gain energy first in Photosystem ll, then later in photosystem l, through the absorption of energy from light.
Photosystem.
No, they move from photosystem 2 to photosystem 1. 2 evolved first but was not discovered until after photosystem 1.
From energy in photons
From energy in photons
The thylakoid membrane contains 2 photosytems, known as Photosystem I and Photosystem II. Together, they function to absorb light and transfer energy to electrons.
They come from Photosystem ll. Photosystem ll gets them by ripping the electrons off of water by a process called photolysis. Electrons gain energy first in Photosystem ll, then later in photosystem l, through the absorption of energy from light.
they move through an electron transport chain to photosystem 1
Photosystem.
From energy in photons
No, they move from photosystem 2 to photosystem 1. 2 evolved first but was not discovered until after photosystem 1.
From energy in photons
They absorb photons.
It's a pathway where electrons are transported from photosystem 2 to photosystem 1.
water
water
Photosystem II most likely evolved first because it provides the energy for producing ATP and passes its electrons to photosystem I.