Which one of the following statements is not true about enzymes? (A) Enzymes are non-specific for a — Surface Chemistry Chemistry Question

💡 Solution & Explanation

(a) Enzymes are highly specific in nature. Each enzyme is specific for a given reaction, i.e., one catalyst cannot catalyse more than one reaction. For example, the enzyme urease catalyses the hydrolysis of urea only. It does not catalyse hydrolysis of any other amide. (b) Enzymes are complex nitrogenous organic compounds which are produced by living plants and animals. They are actually protein molecules of high molecular mass and form colloidal solutions in water. (c) Enzymes work as catalysts by lowering the activation energy of a biochemical reaction. (d) The rate of an enzyme reaction becomes maximum at a definite temperature, called the optimum temperature. The rate of an enzyme-catalysed reaction is maximum at a particular pH called optimum pH, which is between pH values 5-7.