Biology Videos

Chapter 1:  The Science of Biology

- Biology

- Scientific Method

- Essential Characteristics of Life are Conserved

- Elements of a Feedback Loop

- Positive and Negative Feedback Loops

- Homeostatic Loops

- Three Domains of Life

- Hierarchy of Life

- Organ Systems

Chapter 2a:  The Chemistry of Life

- Water & Life

- Water - A Polar Molecule

Chapter 2b:  Biochemistry

- Biological Molecules

- Molecules of Life

- Polymers

- Carbohydrates

- Lipids

- Proteins

Chapter 7a:  Cells

- A Tour of the Cell

- Cellular Organelles

- Compartmentalization

- Why Are Cells Small?

Chapter 2c & 7b:  The Cell Membrane & Enzymes

- The Cell Membrane

- Cell Membranes

- Transport Across Cell Membranes

- Osmosis Demo

- Enzymes

Chapters 8 & 9:  Cellular Energetics

- Bioenergetics

- Gibbs Free Energy

- Life Requires Free Energy

- Coupled Reactions

- ATP:  Adenosine Triphosphate

- Photosynthesis and Respiration

- Photosynthesis

- Cellular Respiration

- The Importance of Oxygen

- Anaerobic Respiration

Chapters 16 & 17:  Evolution & Natural Selection

- Natural Selection

- Examples of Natural Selection

- Selection

- Scientific Evidence for Evolution

- Evidence for Evolution II

- Evolution Continues

- Speciation

- Genetic Drift

- Microevolution

- Hardy-Weinberg Equation

- Solving Hardy-Weinberg Problems

Chapter 18:  Classification

- Cladograms

- Phylogenetics

- Archaea

- Bacteria

- Eukarya

- Protists

- Fungi

- Plants

- Animals

Chapters 19 & 20:  The History of Life; Viruses & Prokaryotes

- Abiogenesis

- The Origin of Life - Scientific Evidence

- Endosymbiosis

- Viruses

- Viral Replication

Chapters 10 & 11:  Chromosomes

- What are Chromosomes?

- Diploid vs Haploid

- Cell Cycle, Mitosis, and Meiosis

- Cell Division

- Mitosis

- Phases of Mitosis

- Meiosis

- Phases of Meiosis

- Mechanisms that Increase Genetic Variation

- What is Cancer?

Chapters 11 & 14:  Heredity

- Genetics

- Mendelian Genetics

- Chromosomal Inheritance

- Beginner's Guide to Punnett Squares

- Chromosomal Genetics

- Blood Types

- Probability in Genetics

- Advanced Genetics

Chapters 12 & 13:  DNA; RNA and Protein Synthesis

- Nucleic Acids

- DNA and RNA - Part 1

- DNA and RNA - Part 2

- What is DNA?

- DNA Replication

- Meselson-Stahl Experiment

- Secret of Life

- Transcription & Translation

- Genotypes and Phenotypes

- Mutations

- DNA Fingerprinting

- Molecular Biology

Chapters 3 & 4:  The Biosphere; Ecosystems and Communities

- Ecosystems

- Environmental Matter Exchange

- Niche

- Ecological Succession

- Biogeochemical Cycling

Chapters 5 & 6:  Populations; Humans in the Biosphere

- Biotic and Abiotic Factors

- Populations

- Communities

- Exponential Growth

- Logistic Growth

- r and K Selection

- Biodiversity

- Ecosystem Change

- The Greenhouse Effect

Chapter 35:  Animal Behavior

- Animal Behavior

- Aposematic Coloration