Question 49

Q49Short answer

Activation energy for the acid catalysed hydrolysis of sucrose is 6.22 kJ mol , –1 while the activation energy is only 2.15 kJ mol when hydrolysis is catalysed by the enzyme sucrase. Explain.

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Enzymes, the biocatalysts, reduce the magnitude of activation energy by providing alternative path. In the hydrolysis of sucrose the enzyme sucrase –1 –1 reduces the activation energy from 6.22 kJ mol to 2.15 kJ mol .