What is an indication that water is entering a cell?

water decreasing from where it came from

Explanation:

that or the cell starts to swell

glycolysis is a process that fuel your metabolism. it is apart of cellular respiration the process that produce atp.

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products