Kaplan Nursing Entrance Exam Practice 2025 – Comprehensive Prep

Question: 1 / 2700

What is the primary function of enzymes?

To provide energy

To catalyze biochemical reactions

The primary function of enzymes is to catalyze biochemical reactions. Enzymes are biological catalysts that speed up chemical reactions in the body without being consumed in the process. They work by lowering the activation energy required for reactions to occur, thus allowing them to proceed more quickly and efficiently. This essential role is vital for numerous processes within living organisms, including digestion, metabolism, and DNA replication.

In contrast, energy provision is a function of macromolecules like carbohydrates and fats, and while some proteins play a role in muscle contraction, that is not the primary function of enzymes. The storage of genetic information is mainly the role of nucleic acids, specifically DNA and RNA. Therefore, the distinction of enzymes as catalysts highlights their crucial role in facilitating and regulating almost all biological reactions.

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To store genetic information

To help in muscle contraction

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