The properties of enzymes covered in the NCERT Solutions for Class 11 Biology Chapter 9 Biomolecules are: 

• The enzymes are complex macromolecules with a higher molecular weight.
• The enzymes help break down larger molecules into simpler molecules by catalyzing the biochemical reactions occurring within the cell.
• Enzymes are action-specific.
• At a pH level between 6 and 8, enzyme activity peaks.