The following kinetic data was collected for a hexokinase with three different substrates (glucose, mannose, and fructose): Substrate Glucose Mannose Fructose The preferred substrate of this hexokinase is Check Km (mm) 0.07 1.2 Keat (S-1) 100 520 1070 because it has a highe affinity catalytic efficiency rate constant
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.
Chemistry
![The following kinetic data was collected for a hexokinase with three different substrates (glucose, mannose, and
fructose):
Substrate
Glucose
Mannose
Fructose
The preferred substrate of this hexokinase is
Check
Km (mm)
6
0.07
1.2
Keat (S-1)
100
520
1070
because it has a highe
affinity
catalytic efficiency
rate constant](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff72bc0b2-be50-491d-9a8c-e3604f079bab%2F82e3e332-7d4b-4468-8278-7342de1445be%2Fomt9v4o_processed.jpeg&w=3840&q=75)
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