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56.7 ENZYMES

Enzymes are the important group of globular proteins which act as biological catalysts in living systems: They may be simple or conjugated proteins, Some enzymes can be non-proteins also. Enzymes increase the rate of biochemical reactions by providing alternative path of lower activation energy. About 3000 different kinds of enzymes have been identified so far. Some common enzymes along with their functions have been given in Table 56.2.

Table 56.2. Some Common Enzymes

Enzymes

Reaction Catalysed

Amylase

Starch → Glucose,

Maltase

Maltose → Glucose

Lactase

Lactose → Glucose + Galactose

Invertase

Sucrose → Glucose + Fructose

Pepsin

Proteins → Amino acids

Trypsin

Proteins → Amino acids