The origin of replication (also called the replication origin) is a particular sequence in a genome at which replication is initiated.
It is the interaction of two or more substances, resulting in chemical changes in them. Chemical reactions take place when some kind of energy is supplied to them. The supplied energy may be in the form of heat, light or mechanical shaking for proper contact between the reactant molecules or electricity.
Why do catalyst speed up rate of reaction? Catalysts speed up a reaction because they offer an alternative path for the reaction to occur. They lower the activation energy required for the reactants to form products, tâ¦hus at any given time, more atoms will have the required activation energy to form products.