Catalysts
Substances that speed up the rate of reaction are called catalysts. Catalysts participate in chemical reaction but does not get consumed. Yeast is an example of biological catalyst.
Enzymes are natural catalysts, these natural catalysts speed up reactions.
Catalysts either accelerate or reduce the rate of the reaction.
In the presence of catalysts the rate of reaction is higher.
Enzymes are biological catalysts. This means they speed up a chemical reaction, but are not broken down or changed by it. They lower the amount of energy required for a chemical reaction to tack place.
True. A catalysts job is to increase the rate of reaction, but it must do so without (a) being changed by the reaction or (b) become incorporated into the final product.
a catalyst can affect the rate of a reaction. speeding it up.
Catalysts speed up reactions by reducing the activation energy.
A catalyst can speed up a chemical reaction. Another possible answer in the Biological sense is that Enzymes speed up chemical reactions, but these enzymes are catalysts of the chemical reactions.Different catalysts catalyse different reactions. For example iron is used as a catalyst in the Haber process (manufacture of ammonia).
Enzymes are the globular proteins which are responsible for altering the rate of reactions inside all organisms - i.e. they are biological catalysts.
A catalyst speeds up the rate of reaction, and lower the activation energy needed.
Catalyst are used to speed up a chemical reaction. They participate in a chemical or biochemical reactions and function in lowering the activation energy. They are not consumed by this so they can be reused. Biocatalyst are known as enzymes.