About this Topic Book

In topic A1.1, we saw how the unique properties of a single molecule, water, create the very environment for life. Now, we're going to explore the molecules that life uses to build itself.

Think of it like this: if water is the construction site, then the molecules we're about to study are the actual bricks, wires, and insulation. We'll begin with the most versatile element of all, carbon, and discover why its unique ability to form stable, complex structures makes it the backbone of every living thing.

From there, we'll dive into two of the most important classes of biological molecules: carbohydrates and lipids. You'll learn how simple sugars provide instant fuel, how plants build towering structures from those same sugars, and how fats and oils serve as long-term energy reserves and form the very boundaries of our cells.

Let's begin our exploration of the essential building blocks of life Note: There is no additional higher level content in B1.1.

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Table of Contents

  • SL/HL Carbon and the Principles of Polymerization
  • SL/HL The Carbon Skeleton and Functional Groups
  • SL/HL Condensation and Hydrolysis
  • Carbohydrates
  • SL/HL Carbohydrates: An introduction
  • SL/HL Monosaccharides: The Simple Sugar Monomers
  • SL/HL Disaccharides: Double sugars
  • SL/HL Polysaccharides: Chain of glucoses
  • SL/HL Glycoproteins and Glycolipids
  • SL/HL Role of Glycocalyx as Antigens
  • Lipids
  • SL/HL Lipids: Introduction
  • SL/HL Triglycerides (Fats and Oils)
  • SL/HL The Polar Bear's Built-in Survival Suit
  • SL/HL Sunflower's Liquid Gold: Sunflower Oil
  • SL/HL Phospholipids
  • SL/HL Steroids
  • SL/HL Hijacking the Cell's Messengers