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

im pretty sure its D

Answer 2

I don't think it would be D, it has a better chance being ATP, or the lights energy

Answer 3

i dont know

Answer 4

also i suck at math to too

Answer 5

Oh wait no its D

Answer 6

My bad! photolysis occurs where it splits apart water molecules to make electrons and hydrogen ions (the H+ is used to reduce NaDP later on) and also O₂ is made as a by product

Answer 7

thank you for conformation friend

Answer 8

Even with the energy they would still need to split!

Answer 9

you're welcome

Answer 10

I'm better at English so if you have english ask me!

Answer 11

yup certainly D

Answer 12

can I have a medal?

Answer 13

im also better in English and especially history

Answer 14

how do i do that

Answer 15

never mind

Answer 16

LOL XD thanks!