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

its easy what u think..!!

Answer 2

B?

Answer 3

no the photosystem 2 is before photosystem 1

Answer 4

A?

Answer 5

Atp are produced not used..!!

Answer 6

C?

Answer 7

no i dont want to irritate you

the answer is D - from water molecules..

Answer 8

oh ok lol why is that?

Answer 9

the water splits into H+ , OH- and e- these electrons released are used further

this is called photolysis of water..

Answer 10

ok thanks

Answer 11

welcome