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Foundations of Biology: Life, Cells, Chemistry, and Cell Division

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Characteristics of Life

  • Characteristics of Life
    09:26
  • Characteristics of Life Example 1
    02:59

Life's Organizational Hierarchy

  • Life's Organizational Hierarchy
    09:50
  • Emergent Properties
    04:05
  • Life's Organizational Hierarchy Example 1
    03:05

Natural Selection and Evolution

  • Natural Selection Causes Adaptation
    07:48
  • Adaptation Improves Fitness
    02:57
  • Evolution can Occur Via Natural Selection
    04:32

Scientific Method

  • Scientific Method Example 1
    01:35
  • Basic Theories of Biology
    03:03
  • Scientific Method
    06:29

Experimental Design

  • Variables
    07:36
  • Experimental Design Example 1
    02:50
  • Negative & Positive Controls
    07:42

Prokaryotic & Eukaryotic Cells

  • Recap: Prokaryotic vs. Eukaryotic Cells
    04:26
  • Prokaryotic & Eukaryotic Cells
    05:54
  • Features of Bacterial Cells
    03:54

Microscopes

  • Microscopes
    06:35
  • Types of Electron Microscopes
    02:52

Introduction to Eukaryotic Organelles

  • Introduction to Eukaryotic Organelles
    03:45
  • Ribosomes
    06:51
  • Map of the Lesson on Eukaryotic Organelles
    02:43

Introduction to the Cytoskeleton

  • Cilia & Flagella
    03:15
  • Introduction to the Cytoskeleton
    06:05

Biological Membranes

  • Biological Membranes Example 1
    02:21
  • Biological Membranes
    06:04

Introduction to Membrane Transport

  • Map of the Lesson on Membrane Transport
    02:33
  • Introduction to Membrane Transport
    02:47
  • Which Molecules Freely Cross Membranes?
    07:10

Passive vs. Active Transport

  • Classes of Membrane Transport Proteins
    03:28
  • Passive vs. Active Transport
    04:18

Concentration Gradients and Diffusion

  • Diffusion
    02:44
  • Concentration Gradients and Diffusion
    04:51

Simple and Facilitated Diffusion

  • Simple and Facilitated Diffusion
    05:10
  • Transport Proteins of Facilitated Diffusion
    04:49

Active Transport

  • Secondary Active Transport
    07:06
  • Active Transport
    02:37
  • Primary Active Transport
    02:53

Atoms- Smallest Unit of Matter

  • Atoms- Smallest Unit of Matter Example 1
    02:13
  • Atoms- Smallest Unit of Matter Example 3
    03:51
  • Electron Orbitals & Energy Shells
    09:44

Introduction to Chemical Bonding

  • Introduction to Chemical Bonding Example 1
    1:59
  • Intramolecular vs. Intermolecular Bonds
    03:53
  • Map of the Lesson on Chemical Bonding
    02:42

Covalent Bonds

  • Covalent Bonds
    04:28
  • Polar Covalent Bonds
    06:59
  • Nonpolar Covalent Bonds
    06:41

Ionic Bonding

  • Ions: Anions vs. Cations
    04:34
  • Ionic Bonds
    06:07

Hydrogen Bonding

  • Hydrogen Bonding
    05:03

Introduction to Water

  • Introduction to Water
    01:54
  • Introduction to Water Example 1
    01:51
  • Emergent Properties of Water
    01:29

Acids and Bases

  • Acids
    02:45
  • Acids and Bases
    01:29
  • Bases
    03:48

pH Scale

  • Buffers
    05:38
  • pH Scale
    11:05

Introduction to Biomolecules

  • Introduction to Biomolecules
    01:17
  • Map of the Lesson on Biomolecules
    01:29

Carbohydrates

  • Formation & Breakdown of Polysaccharides
    03:08
  • Carbohydrates
    04:53
  • Carbohydrate Functions
    05:08

Lipids

  • Steroids & Waxes
    03:30
  • Lipids
    04:19
  • Fatty Acids
    06:59

Proteins

  • Protein Structure
    08:02
  • Amino Acids
    04:37
  • Proteins
    02:50

Nucleic Acids

  • Nucleic Acids Example 2
    01:05
  • Formation & Breakdown of Nucleic Acids
    04:07
  • DNA vs. RNA
    05:57

Introduction to the Cell Cycle

  • Introduction to the Cell Cycle
    04:46

Interphase

  • Centrosomes & Mitotic Spindles
    04:02
  • Interphase
    08:05

Phases of Mitosis

  • Phases of Mitosis
    03:21
  • Metaphase
    01:58
  • Prometaphase
    03:20

Cytokinesis

  • Animal Cell Cytokinesis
    02:56
  • Cytokinesis
    01:25
  • Cytokinesis Example 1
    01:59

Introduction to Meiosis

  • Introduction to Meiosis Example 1
    01:43
  • Meiosis I & Meiosis II
    04:49
  • Introduction to Meiosis
    04:33