WE do not know what effect you are asking about, but enzymes are proteins that act as catalysts, they speed up chemical reactions.
Once you boil the enzyme, it will be inactivated. Milk will have no effects of the enzyme.
Amylase (ptyalin)
When an enzyme is frozen, it only slows down activity. Unlike boiling an enzyme, it does not stop it from working.
The active site of an enzyme is a "slot" where the substrate will fit. This will produce a reaction that will be faster than without the enzyme.
Side effects associated with enzyme therapy include heartburn, nausea and vomiting, diarrhea, bloating, gas, and acne.
Physical activity can alter the shape of enzyme which can cause damage or may the enzyme become inactive
bacteria as many useful effects like it is used in the agriculture it is used in medicine to manufacture antibiotic some bacteria are live in alimentary canal to produce enzyme like CELLULASE to digest cellulose in herbivorus
pancreas
Restriction enzymes.
Yes,they do produce H2O2.They are broken by catalase enzyme.
effects the body functions, overaction of other enzyme results in deterioreting the condition.
A change in pH can denature an enzyme, meaning the reaction would stop.