Answer:
Activation Energy: the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction
Catalyst: A substance that increases the rate of a chemical reaction
Enzymes: a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
Substrate:
the surface or material on or from which an organism lives, grows, or obtains its nourishment.
Conservation of mass: a principle stating that mass cannot be created or destroyed.
Conservation of energy:
a principle stating that energy cannot be created or destroyed, but can be altered from one form to another.