What is Life Made of? (Carbon & Biological Molecules): Crash Course Biology #20

Despite the diverse appearance and characteristics of organisms on Earth, the chemicals that make up living things are remarkably similar, often identical. In this episode of Crash Course Biology, we’ll look at the building blocks of the four major classes of biomolecules, how those join up to form macromolecules, and how a team of six atoms forms the vast majority of living matter. Chapters: Introduction to Life’s Molecules 00:00 Chemical Bonds 2:38 The Major Biological Molecules 6:12 Polymerization 9:27 Hydrolysis 10:54 Review & Credits 12:32 This series was produced in collaboration with HHMI BioInteractive, committed to empowering educators and inspiring students with engaging, accessible, and quality classroom resources. Visit for more information. Check out our Biology playlist here: Watch this series in Spanish on our Crash Course en Espa&