Enzymes are biological catalysts. They accelerate biological reactions. Which of the following is not true about enzymes?

Enzymes accelerate biological reactions by increasing the energy of activation.

The correct answer is Option (4) → Enzymes accelerate biological reactions by increasing the energy of activation.

Complete statement:
The statement “Enzymes accelerate biological reactions by increasing the energy of activation” is not true about enzymes.

Reasoning:
Enzymes speed up reactions by lowering the activation energy, not increasing it. Lower activation energy allows more molecules to reach the transition state easily, thereby increasing the rate of reaction.

The other statements are true:

• Enzymes are globular proteins.

• They are required in small quantities.

• Most enzyme names end with the suffix –ase.