Topic Name Description
Page Course Syllabus
Unit 1: Introduction to Biology Page Unit 1 Learning Outcomes
1.1: Introduction to Biological Inquiry Page The Science of Biology
Page Themes and Concepts of Biology
Page Introduction to Biological Systems
1.2: Biological Systems and Water Page Advanced Characteristics of Life
Unit 2: Basic Chemistry Page Unit 2 Learning Outcomes
2.1: Atoms and Molecules Page More on the Atom
Page Protons, Neutrons, and Electrons
Page Orbitals
Page More on Orbitals and Electron Configuration
Page Valence Electrons
Page Atoms, Isotopes, Ions, and Molecules: The Building Blocks
Page Chemical Notation
Page Balancing Chemical Equations
Page Writing and Balancing Chemical Equations
2.2: Thermodynamics Page Energy and Metabolism
Page More on Energy
Page The First Law of Thermodynamics
Page Gibbs Free Energy
Unit 3: Biological Molecules Page Unit 3 Learning Outcomes
3.1: Water and Organic Molecules Page Water
Page The Properties of Water
3.2: Acids and Bases Page Acids, Bases, and the pH Scale
Page pH, pOH, and pKw
Page Electrolytes and pH
Page Hydrogen Atoms in Acids and Bases
Page Acid-Base Equilibrium and Acid Strength
3.3: Biological Macromolecules Page Biological Polymers
Page Balanced Diet
Page Carbohydrates
Page More on Carbohydrates
Page Lipids
Page Proteins
Page Nucleic Acids
Page Test Yourself: Biological Macromolecules
Unit 4: Cells and Cell Membranes Page Unit 4 Learning Outcomes
4.1: Cellular Organization and Organelles Page Cell Structure
Page Parts of a Cell
Page Studying Cells
Page Prokaryotic Cells
Page Eukaryotic Cells
Page Types of Cells
Book The Endomembrane System, Proteins, the Cytoskeleton, and Connections between Cells and Cellular Activities
4.2: The Cell or Plasma Membrane Page Overview of the Cell Membrane
Page Parts of the Cell Membrane
4.3: Membranes, Lipids, and the Fluid Mosaic Model Page Review of the Cell Membrane
Page Structure of the Cell Membrane
Page The Structure of Lipids
Page The Fluid Mosaic Model
4.4: Diffusion, Osmosis, and Active Transport Page Passive Transport via Simple Diffusion
Page Passive Transport and Tonicity
Page Passive Transport via Osmosis
Page More on Osmosis
Page Facilitated Diffusion
Page Primary, Secondary, and Bulk Transport
4.5: Transporting Signal Molecules across the Plasma Membrane Page Signaling Molecules and Cellular Receptors
Unit 5: Enzymes, Metabolism, Cellular Respiration Page Unit 5 Learning Outcomes
5.1: Energy and Thermodynamics Page Energy and Thermodynamics
Page Death of a Gummy Bear
5.2: Metabolic Pathways, Enzymes, and Regulation Page Metabolism: Part 1
Page Metabolism: Part 2
Page Metabolism: Part 3
Page Enzyme Nomenclature
5.3: The Role of Cellular Respiration, Energy, and ATP Page Cellular Respiration
Page How to Think about Energy and ATP
Page The Role of ATP
5.4: Glycolysis Page Introduction to Glycolysis
Page Glycolysis
Page More on Glycolysis
Page The Process of Glycolysis
5.5: The Krebs Cycle (Citric Acid Cycle) Page The Krebs Cycle (Citric Acid Cycle)
Page A Tour of the Citric Acid Cycle
Page The Citric Acid Cycle and Oxidative Phosphorylation
5.6: Oxidative Phosphorylation: Electron Transport Chain and Chemiosmosis Page The Electron Transport Chain
Page Energy Accounting
Page More on the Electron Transport Chain
Page Oxidative Phosphorylation
Page Review of Cellular Respiration
5.7: Anaerobic Cellular Respiration: Fermentation Page Metabolism Without Oxygen
Page Anaerobic Cellular Respiration
Page Fermentation and Anaerobic Respiration
Unit 6: Photosynthesis Page Unit 6 Learning Outcomes
6.1: Overview of Photosynthesis Page Overview of Photosynthesis
Page The Light-Dependent Reactions of Photosynthesis
Page Using Light Energy to Make Organic Molecules
Page A Visual Explanation of Photosynthesis
Page Light and Carbon Reactions
6.2: Photosynthesis and Photorespiration Page Photosynthesis
Page Light Reactions
Page Photophosphorylation
Page The Calvin Cycle
Page Photorespiration
6.3: C-4 and CAM Photosynthesis Page C-4 and CAM Photosynthesis
6.4: The Carbon Cycle Page The Carbon Cycle
Page Carbon: The Ecosystems View
Unit 7: Cellular Reproduction: Mitosis Page Unit 7 Learning Outcomes
7.1: DNA and RNA Page DNA and RNA
7.2: Cell Division Page Cell Division
Page The Cell Cycle
Page Mitosis
Page What Is Plant Cell Mitosis?
Page A Tour of Mitosis
Book Prokaryotic Cell Division and DNA Replication in Bacteria
Unit 8: Cellular Reproduction: Meiosis Page Unit 8 Learning Outcomes
8.1: Cell Division, Meiosis, and Sexual Reproduction Page The Cellular Basis of Reproduction
Page Meiosis
Page Mitosis, Meiosis, and Sexual Reproduction
Page Comparing Mitosis and Meiosis
Page A Tour of Meiosis
Page Meiosis Errors and the Formation of New Species
8.2: Chromosomes, Chromatids, and Chromatin Page What Are Chromosomes?
Page Chromosomes, Chromatids, and Chromatin
Unit 9: Mendelian Genetics and Chromosomes Page Unit 9 Learning Outcomes
9.1: Introduction to Genetics Page Mendel's Experiments
Book Genetics
Page Mutations
9.2: Heredity Page Introduction to Heredity
Page Pedigrees
Page Sex-Linked Traits
Unit 10: Gene Expression Page Unit 10 Learning Outcomes
10.1: DNA Replication and Synthesis Page DNA
Page The Chemical Structure of DNA
Page DNA Replication
Page Visualizing DNA Replication
10.2: DNA Transcription Page Transcription
Page More on Transcription
10.3: Translation and Synthesis Page Translation and Synthesis
Page More on Translation
10.4: Regulating Gene Expression Page Regulation of Gene Expression
10.5: Using DNA Technology Page Biotechnology
Page What Is Gene Editing and How Does It Work?
Page CRISPR: A Game-Changing Genetic Engineering Technique
Page Genes, Health, and Moving Beyond Race
Study Guide Book BIO101 Study Guide
Course Feedback Survey URL Course Feedback Survey