Assign R or S configuration to each chirality center in the following molecules. First assign the configuration of the chirality center closest to the top of the Fischer projection. Then give the configuration of the other chirality center. CH₂OH -OH CH3CH₂ # H- -OCH3 CO₂H 1st structure: Top chirality center 2nd structure: Top chirality center H3C- H3C- OH -OH -H Other chirality center: ✓. Other chirality center: V
Catalysis and Enzymatic Reactions
Catalysis is the kind of chemical reaction in which the rate (speed) of a reaction is enhanced by the catalyst which is not consumed during the process of reaction and afterward it is removed when the catalyst is not used to make up the impurity in the product. The enzymatic reaction is the reaction that is catalyzed via enzymes.
Lock And Key Model
The lock-and-key model is used to describe the catalytic enzyme activity, based on the interaction between enzyme and substrate. This model considers the lock as an enzyme and the key as a substrate to explain this model. The concept of how a unique distinct key only can have the access to open a particular lock resembles how the specific substrate can only fit into the particular active site of the enzyme. This is significant in understanding the intermolecular interaction between proteins and plays a vital role in drug interaction.
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