There are two main Types of Trees based on their leaves, deciduous and evergreen; 1  Deciduous trees are trees whose leaves loose their green coloring and turn orange, red or brown before they are shed at the end of the growing season, generally in autumn. 2  Evergreen trees carry their leaves throughout the year.
A catalyst is a chemical species that alters the rate of a chemical reaction without undergoing any type of change. Such catalysts that slow down a reaction are called negativ â¦ e catalysts or poison.
What is the role of an enzyme substrate complex? An enzyme-substrate complex is formed when a subtrate molecule binds with the active site of an enzyme that is of similar shape and size.nswer by Ataylor12193. Confidence votes 115. An enzyme-substrate complex uses the reactants(substrates) and the enzyme. The enzyme is like a catalyst that reduces the required activation energy and speeds up the chemical reaction.