[Blueflag]

Ping for later read because ...

this is counter intuitive.

Photosynthesis fixes or attaches hydrogen to carbon to produce hydrocarbons and releases O2 as a by-product. nCO2 + nH2O —> CxHxOx + O2

How is hydrogen produced as a result of photosynthesis?

Interesting ...

[LOC1]

Apparently the process takes oxygen in water and uses it to oxidize a particular reagent. In that reaction, the hydrogen in water is released. It is not clear what the reagent happens to be, or how it is regenerated, if it is, for later reuse. Go to the article and click on the link below the picture. That is the source of these comments.

[decimon]

CxHxOx

I used to get that from the PX.