The energy required to break chemical bonds and begin the reaction

The small portion of enzyme molecule (around 34 amino acids) that is directly involved in catalysis

The enzyme that digests starch into disaccharides 

The chemical reactions in living organisms involved in the synthesis of compounds 

The catalyst in metabolic reactions i.e. the enzyme

The chemical reactions in living organisms that breakdown larger molecules

A compound/element accelerates a chemical reaction without any change in itself. 

The organic cofactors of enzymes that are loosely attached to enzymes; transport chemical groups from one enzyme to another 

The non-protein molecules or ions required by enzymes for activity e.g., metal ions and organic molecules 

Damage or loss of structure of a molecule 

The pH at which an enzyme works at its maximum rate 

The temperature at which an enzyme works at its maximum rate 

The proteins that catalyze (i.e. speed up) biochemical reactions but are not changed during the reactions 

The complex formed by the attachment of the substrate molecule at the active site of an enzyme 

The enzyme that digests the lipids into glycerol and fatty acids

In the model to explain the mechanism, of enzyme action, both the enzyme and the substrate possess specific complementary geometric shapes that fit exactly into one another

Collective term for all the biochemical reactions that occur in living organisms to maintain life 

The molecules that are formed as the result of enzymatic reaction 

The state at which all the active sites of the enzymes are occupied and any more substrate molecules do not find free active sites 

The molecules at the beginning of enzymatic reactions, reactants in enzymatic reactions 

The molecules that stop enzymes from working 

The organic cofactors of enzymes that are tightly bound to enzymes