Enzymes Section 2.5

Catalyst A catalyst is a substance that decreases the activation energy needed to start a chemical reaction. A catalyst also speeds up the reaction.

Catalyst Catalyst are not considered to be part of the product or reactant, because they are unchanged during the reaction.

Enzymes Enzymes are types catalysts Enzymes are types of proteins as well Conditions must be right for enzymes to function properly. Temperature pH Salt and water content

Turn and Talk Are all proteins enzymes? Are all catalysts enzymes? What are the building blocks of enzymes?

Enzymes