The terms reactant and product can be used to describe constituents of individual enzymatic reactions or entire metabolic pathways. Reactants (or 'substrates') are the starting materials for a reaction, In the generic reaction shown below, A and B are the reactants. C and D are the products. CO2 and RUBP are the reactants in this reaction, Rubisco is the enzyme, and the product is two molecules of 3PGA. We can also refer to the reactants and products of entire metabolic pathways, such as of the light-independent reactions.
A. PLASTER IS A TIME TESTED PRODUCT: Plaster has been used as a swimming pool surface coating for the past 50 years. This experience has shown that plaster is a durable surface that can stand up to the environment of proper pool water chemistry.
Marcite Plaster Failures. Our newly built pool, which had a plaster finish, started to fail after 2 years. After many attempts of contacting the Pool Builder to correct the deteriorating plaster problem with no success, we realized how sensitive of a product plaster really was. Our builder claimed that we were at fault because how we handled our water chemistry maintenance. This was not true.