On the multicellular level,
water is absorbed through the root hair then into the xylem of the roots and into the xylem of the stem, it then goes through the xylem of the leaves into the ...
Green plants make their own food by the process
In terms of the gas taken in and the gas given out,
... carbon dioxide gas and water as
This depends on your definition of "
Depends how in detail you want to go, but generally Water and Glucose (though the formation of glucose from other sugars or Bio-molecules is considered to be ...