Biochemistry

Science

Definition

Biochemistry is the study of chemical processes and substances within living organisms. It focuses on the structure and function of the four major classes of biological macromolecules—carbohydrates, lipids, proteins, and nucleic acids—and how they interact to sustain life.

Examples

  • Enzymes are proteins that act as biological catalysts, speeding up metabolic reactions
  • DNA and RNA are nucleic acids that store and transmit genetic information
  • ATP, a nucleotide, serves as the universal energy currency in biochemical reactions

Related Terms

Macromolecules Enzyme structure Cell respiration Photosynthesis

Study This Concept

Practice biochemistry with free review games in these units:

Biology Unit 1: Introduction to Biology