When an enzyme is put in an environment where the pH is too low, the enzyme becomes denatured and is no longer effective. Denaturation changes the shape of the . active site substrate induced fit product active site
substrate
induced fit
product

i would have a lunch. it's one big package of food, making it one food. : p

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

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