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General Biology I: Core Concepts and Study Guide

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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

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

Ionic Bonding

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

Covalent Bonds

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

Hydrogen Bonding

  • Hydrogen Bonding
    05:03

Introduction to Biomolecules

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

Functional Groups

  • Functional Groups Example 1
    02:00
  • Functional Groups
    06:04

Carbohydrates

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

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

Lipids

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

Prokaryotic & Eukaryotic Cells

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

Introduction to Eukaryotic Organelles

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

Endosymbiotic Theory

  • Endosymbiotic Theory
    06:58

Biological Membranes

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

Concentration Gradients and Diffusion

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

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

Osmosis

  • Osmosis Example 1
    02:18
  • Osmosis
    05:59
  • Direction of Osmosis
    06:48

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

Introduction to Energy

  • Thermodynamics: System vs. Surroundings
    04:21
  • Introduction to Energy
    04:58

Laws of Thermodynamics

  • Second Law of Thermodynamics
    02:53
  • Entropy
    03:21
  • First Law of Thermodynamics
    04:43

Chemical Reactions

  • Chemical Reactions
    01:56
  • Types of Chemical Reactions
    05:48

ATP

  • Energy Coupling
    04:57
  • ATP
    06:43
  • Phosphorylation
    03:

Enzymes

  • Functions of Enzymes
    02:32
  • Enzymes Example 1
    02:25
  • Enzymes
    02:55

Introduction to Metabolism

  • Introduction to Metabolism
    02:17
  • Catabolic & Anabolic Pathways
    03:25

Introduction to Aerobic Cellular Respiration

  • Introduction to Cellular Respiration Example 2
    01:53
  • Aerobic Cellular Respiration is a Redox Reaction
    04:18
  • Stages of Aerobic Cellular Respiration
    02:31

Glycolysis

  • Phases of Glycolysis
    06:20
  • Glycolysis Example 1
    01:29
  • Remembering Phases of Glycolysis
    02:49

Pyruvate Oxidation

  • Pyruvate Oxidation
    04:38

Krebs Cycle

  • Krebs Cycle Example 1
    01:20
  • Krebs Cycle
    01:37
  • Phases of The Krebs Cycle
    09:54

Electron Transport Chain

  • Remembering the ETC
    04:43
  • Electron Transport Chain
    07:41

Chemiosmosis

  • Chemiosmosis
    05:01

Review of Aerobic Cellular Respiration

  • Total Products for Each Stage of Aerobic Cellular Respiration
    07:25
  • Review of Aerobic Cellular Respiration
    07:51

Fermentation & Anaerobic Respiration

  • Lactic Acid Fermentation
    03:34
  • What Happens to Aerobic Organisms if There's No Oxygen?
    07:51
  • Alcohol Fermentation
    02:02

Introduction to Photosynthesis

  • Introduction to Photosynthesis
    03:32
  • Photosynthesis vs. Cellular Respiration
    07:55
  • Photosynthesis is a Redox Reaction
    03:20

Leaf & Chloroplast Anatomy

  • Leaf & Chloroplast Anatomy
    08:18

Electromagnetic Spectrum

  • Electromagnetic Spectrum
    04:29

Pigments of Photosynthesis

  • Pigments of Photosynthesis
    05:58
  • Introduction to Photosystems
    04:59
  • Absorption Spectrum of Photosynthesis
    02:52

Stages of Photosynthesis

  • Stages of Photosynthesis
    03:16
  • Map of the Lesson on Photosynthesis
    02:41

Light Reactions of Photosynthesis

  • Light Reactions of Photosynthesis Example 1
    01:48
  • Light Reactions of Photosynthesis
    04:06
  • Steps of the Light Reactions
    15:15

Calvin Cycle

  • 3 Phases of the Calvin Cycle (C3 Pathway)
    10:58
  • Calvin Cycle
    03:42

Introduction to Cell Division

  • Asexual vs. Sexual Reproduction
    04:45
  • Introduction to Cell Division
    09:40
  • Importance of Cell Division
    03:19

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

Meiosis I

  • Meiosis I
    07:55

Meiosis II

  • Meiosis II
    06:17

Mitosis & Meiosis Review

  • Mitosis & Meiosis Review Example 1
    01:27

Genes & Alleles

  • Genes & Alleles Example 1
    02:09
  • Genes & Alleles
    05:02
  • Haploid vs. Diploid Cells
    04:14

The Griffith Experiment

  • The Griffith Experiment
    08:56

The Hershey-Chase Experiment

  • The Hershey-Chase Experiment
    03:59
  • Bacteriophages
    03:44

Chargaff's Rules

  • Chargaff's Rules
    04:33

Discovering the Structure of DNA

  • Detailed DNA Structure
    06:24
  • Discovering the Structure of DNA
    04:41

Meselson-Stahl Experiment

  • Meselson-Stahl Experiment
    09:03

Introduction to DNA Replication

  • Unwinding the DNA: Topoisomerase, Helicase & SSBs
    05:10
  • Components of DNA Replication
    04:47
  • Origin of Replication
    03:33

DNA Polymerases

  • DNA Polymerase Requirements
    05:03
  • DNA Polymerases
    04:01

Leading & Lagging DNA Strands

  • Leading & Lagging DNA Strands
    05:15

Steps of DNA Replication

  • Steps of DNA Replication
    09:29

DNA Repair

  • DNA Repair
    03:20
  • DNA Proofreading & Repair Enzymes
    02:12

Telomeres

  • Telomeres
    04:25

Central Dogma

  • Central Dogma
    05:45

Introduction to Transcription

  • Overview of Transcription
    07:44
  • Introduction to Transcription
    05:51

Steps of Transcription

  • 3) Termination of Transcription
    02:44
  • 1) Initiation of Transcription
    04:16
  • 2) Elongation of Transcription
    04:01

Eukaryotic RNA Processing and Splicing

  • Eukaryotic RNA Processing and Splicing
    02:32
  • 2) RNA Splicing Creates Mature mRNA
    08:44
  • 1) RNA Processing
    04:19

Introduction to Types of RNA

  • Introduction to Types of RNA
    07:20

Genetic Code

  • How to Use the Genetic Code
    11:39
  • Genetic Code
    01:28

Introduction to Translation

  • Ribosomal tRNA Binding Sites
    06:16
  • Ribosome Subunits
    08:42
  • Introduction to Translation
    06:12

Steps of Translation

  • 2) Elongation of Translation
    04:59
  • 3) Termination of Translation
    02:16
  • 1) Initiation of Translation
    05:03

Post-Translational Modification

  • Post-Translational Modification
    04:26

Review of Transcription vs. Translation

  • Review of Transcription vs. Translation
    04:07

Mutations

  • Mutations
    02:29
  • Types of Mutations
    08:44

Introduction to Regulation of Gene Expression

  • Positive vs Negative Gene Regulation
    02:17
  • Introduction to Regulation of Gene Expression
    06:40