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

Answer 1

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

Answer 2

I thought that I got into Geometry though.

Answer 3

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

Answer 4

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.

Answer 5

so is It ATP

Answer 6

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.

Answer 7

@Juakikun im better at science >.<

Answer 8

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

Answer 9

Well is it ATP

Answer 10

no it is D

Answer 11

water molocules?!

Answer 12

Hmm I thought it was light energy

Answer 13

APT