Respuesta :

Glucose is y because this process takes place in chloroplast which means it's in a plabt cell.
Hagrid
In the photosynthesis process happening inside a chloroplast of a plant, this substances are present:

Carbon dioxide + water --> (with energy  energy from the sun + enzymes) --> glucose + oxygen

So, in this given equation: x+h2o y+o2, y here represents GLUCOSE. 
ACCESS MORE
EDU ACCESS
Universidad de Mexico