[SPARTAAA 117]

For photosynthesis the intro for my book says the equation is

Carbon Dioxide (Co2) + Water(H20) yields Glucose(C6H1206)+ Oxygen (O2)


3 sections later the book is saying water is created as well. Can someone please answer?

I'd really love a straight answer cause Im tryna finish studying today.

The other equation they later give me is 6CO2+12H20 yields 6H20+6O2+ C6H12O6

Where does this water come from? i know its not left over cause the book says the water is split in half and the o2s make oxygen

[fledarmus]

Photosynthesis is an involved, multi-step process rather than a single reaction. If you follow the process through step by step, there are some steps which use water and others which give off water. The reaction you show is just an overall outcome, it doesn't show you what happens in each step.

http://en.wikipedia.org/wiki/Photosynthesis explains it better than I do:

In oxygenic photosynthesis water is the electron donor and, since its hydrolysis releases oxygen, the equation for this process is:
 2n CO2 +        4n H2O + photons →        2(CH2O)n +     2n O2 + 2n H2O
 carbon dioxide + water + light energy → carbohydrate + oxygen + water

Often 2n water molecules are cancelled on both sides, yielding:
 2n CO2 +         2n H2O + photons →       2(CH2O)n +     2n O2
 carbon dioxide + water + light energy → carbohydrate + oxygen