About This Chapter
Introduction to Molecular Biology - Chapter Summary
The lessons in this chapter walk you through the basics of molecular biology by introducing you to the composition and functions of carbohydrate, protein and lipid molecules. Find out how each is structured and what it does. You can also learn about amino acids, peptide bonds and more.
Brightly written, engagingly presented content makes working through these lessons a pleasure. The short duration ensures rapid progression through the chapter, so that you can gain the maximum benefit with a minimal investment of your time. Take the lesson quizzes and chapter test to check your mastery and retention, and use the Dashboard to stay on track. Use these lessons to learn about the following:
- Carbohydrates: what they are and what they do
- Functions and composition of lipids
- Composition and functions of proteins
- Overview of amino acids, peptide bonds and polymerization in proteins
- Characteristics and composition of the 20 amino acids
1. Structure and Function of Carbohydrates
Carbohydrates are found in many foods that we eat and may be found as sugars, starches, or fiber. Learn more about these three distinct types of carbohydrates, and how they are distinguished through their chemical structures in this lesson.
2. Structure and Function of Lipids
Molecules called lipids have long hydrocarbon chains that determine the way they act. They can be fats, oils, or hormones, and even exist in our cell membranes. Learn more about the chemical structure and biological function of various lipids in this lesson.
3. Proteins I: Structure and Function
We need our proteins, not just as a major food group but for the many useful roles that they play in our bodies. In our introductory lesson to proteins, you'll learn about the many functions we rely on them to perform.
4. Proteins II: Amino Acids, Polymerization and Peptide Bonds
In this lesson, we'll take a deeper look at amino acids. You'll learn what makes a peptide, and what separates a protein from other kinds of amino acid bonds.
5. Proteins III: Structure and Characteristics of the 20 Amino Acids
How do amino acids form the intricate polypeptide chains found in proteins? It's a matter of chemistry. Join glycine, a special amino acid, as she sizes up the other amino acids.
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Other chapters within the Science 101: Intro to Natural Sciences course
- Atomic Structure
- Fundamentals of Matter
- Introduction to Thermodynamics
- Mechanics of Physics
- Introduction to Relativity
- Fundamentals of Electricity
- Introduction to Magnetism
- Fundamentals of Waves, Sound and Light
- Space, The Solar System and the Universe
- Introduction to Atmospheric Science
- Geology Basics
- Cell Biology Fundamentals
- Introduction to Biochemistry
- Molecular Genetics Overview
- Cell Processes
- Plant Biology Foundations
- Human Anatomy Overview
- Animal Reproduction, Growth and Development
- Fundamentals of Genetics
- Introduction to Ecology
- Basics of Evolution
- The Origin and History of Life On Earth
- Phylogeny and the Classification of Organisms
- Studying for Science 101