1. Tardigrade
  2. Question
  3. Chemistry
  4. Which of the following statements is true for enzymes? I. Enzymes do not have nucleophilic groups. II. Enzymes are specific in joining with chiral molecules and catalyse their reaction. III. Enzyme catalysis the chemical reactions by decreasing the activation energy. IV. Pepsin is a proteolytic enzyme.

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Q. Which of the following statements is true for enzymes?
I. Enzymes do not have nucleophilic groups.
II. Enzymes are specific in joining with chiral molecules and catalyse their reaction.
III. Enzyme catalysis the chemical reactions by decreasing the activation energy.
IV. Pepsin is a proteolytic enzyme.

Rajasthan PETRajasthan PET 2006

Solution:

Enzymes are complex nitrogenous organic compounds of high molecular weight. These are protein, produced in living cells. They catalyse the biochemical reactions by decreasing their activation energy. They, are specific in nature. Pepsin is a proteolytic enzyme. It is found in pancreatic juice. $ Protein\xrightarrow[{}]{Pepsin}Proteoses+Peptones $