Q21. The 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-1 when the enzyme sucrase catalyses hydrolysis. Explain.
Answer: Enzymes reduce the magnitude of activation energy by providing an alternative path in the hydrolysis of sucrose. The enzyme sucrase reduces the activation energy from kJ mol-1 to 2.15kJ mol-1