When light energy excites electrons in photosystem II, where do the electrons to replace them come from?

A. ATP
B. photosystem I
C. the light energy
D. split water molecules

Question

When light energy excites electrons in photosystem II, where do the electrons to replace them come from?

	A.	ATP
	B.	photosystem I
	C.	the light energy
	D.	split water molecules

anonymous · Answer

no offense but this is science and its in the math section, I will help anyway tho :)

minecrafter64 · Answer

I thought that I got into Geometry though.

minecrafter64 · Answer

Anyway I thought that the answer was A but I'm not sure.

anonymous · Answer

In photosystem II, the electron lost from the reaction center is replaced with an electron that comes from water. When two water molecules are split, four electrons and four protons are released. It requires a lot of energy to break the bonds in a water molecule—much more energy than a single photon of light contains.

minecrafter64 · Answer

so is It ATP

anonymous · Answer

no it would be D split water molecules as I stated in the paragraph before^

(In photosystem II, the electron lost from the reaction center is replaced with an electron that comes from water.) When two water molecules are split, four electrons and four protons are released. It requires a lot of energy to break the bonds in a water molecule—much more energy than a single photon of light contains.

anonymous · Answer

@Juakikun  im better at science >.<

juakikun · Answer

@GingaTheNinja<3 I can see that. Lol your like me but I also favor History.

minecrafter64 · Answer

Well is it ATP

anonymous · Answer

no it is D

minecrafter64 · Answer

water molocules?!

minecrafter64 · Answer

Hmm I thought it was light energy

anonymous · Answer

APT