Biological Macromolecules

Chapter 5: Biological Macromolecules Introduction

Overview of Biological Macromolecules

• Definition: Biological macromolecules are large, complex molecules essential for life, often referred to as "big molecules."

• Four Major Classes: There are four primary classes of biological macromolecules:

  1. Carbohydrates

  2. Lipids

  3. Proteins

  4. Nucleic Acids

• Chapter Structure: This chapter will be divided into two parts, first covering carbohydrates and lipids, followed by proteins and nucleic acids.

Polymers and Monomers

• Polymers: Large molecules (macromolecules) that are typically formed by linking together many smaller, repeating units.

• Monomers: The individual, basic building block units that make up a polymer.

• Polymeric Nature of Macromolecules:

  • Three of the four major classes are true polymers: Carbohydrates, Proteins, and Nucleic Acids.

  • Lipids, while large, are not considered true polymers; they exhibit a