• Chad's Videos

    Chad's videos are widely recognized as some of the best science videos on the web. His DAT videos have been a mainstay for more than a decade. Learn from the best!

  • Biology Quizzes

    Over 1500 high yield biology questions arranged by topic.

  • Chad's Study Guides

    Taking notes is a breeze with Chad's study guides. Be organized and maximize the efficiency of your studies!

Course curriculum

  • 01

    Outlines

    • Course Redesign

    • DAT / OAT Biology Outlines

  • 02

    Cell and Molecular Biology

    • 1.1 Review of Thermodynamics and Kinetics (21:31)

    • 1.2 Enzymes (32:15)

    • Enzymes (20 Questions)

    • 2.1 Introduction to Cellular Metabolism (6:16)

    • 2.2 Glycolysis and Anaerobic Metabolism (17:51)

    • 2.3 Citric Acid Cycle (8:48)

    • 2.4 Electron Transport Chain (9:39)

    • 2.5 Summary of Aerobic Respiration (5:23)

    • 2.6 Gluconeogenesis and Glycogen Metabolism (3:52)

    • 2.7 Lipid Metabolism (14:09)

    • Metabolism #1 (20 Questions)

    • Metabolism #2 (15 Questions)

    • 2.8 Photosynthesis (40:33)

    • Photosynthesis (40 Questions)

    • 3.1 Introduction to Molecular Genetics (8:30)

    • 3.2 DNA Replication (27:38)

    • 3.3 DNA Repair (9:40)

    • DNA Replication (30 Questions)

    • 3.4 Transcription (27:53)

    • 3.5 Translation (11:52)

    • Protein Synthesis (40 Questions)

    • Regulation of Eukaryotic Gene Expression (20 Questions)

    • 3.6 Molecular Techniques (24:54)

    • Molecular Techniques (40 Questions)

    • 6.1 Anatomy of the Cell (14:16)

    • 6.2 Protein Trafficking (7:34)

    • 6.3 Plasma Membrane (14:04)

    • 6.4 Membrane Transport (8:45)

    • 6.5 Cell Signaling (6:28)

    • 6.6 Osmosis (4:32)

    • 6.7 Exo and Endocytosis (3:16)

    • 6.8 Cytoskeleton (3:44)

    • 6.9 The Cell Cycle and Mitosis (4:25)

    • Cell Structure #1 (31 Questions)

    • Cell Structure #2 (20 Questions)

    • Cell Membranes and Transport (50 Questions)

    • Transport and Circulation (30 Questions)

    • Cell cycle (20 Questions)

    • Mitosis (25 Questions)

    • Biomolecules (30 Questions)

    • Biological Imaging Techniques (25 Questions)

  • 03

    Diversity of Life

    • 5.1 Viruses (26:45)

    • 5.2 Prokaryotes (21:54)

    • Prokaryotes & Viruses (40 Questions)

    • 5.3 Fungi (6:27)

    • Biodiversity (100 Questions)

    • Plants (100 Questions)

  • 04

    Structure and Function of Systems (Anatomy/Physiology)

    • Nervous System (43:17)

    • Nervous System (40 Questions)

    • Endocrine System (24:53)

    • Endocrine System (50 Questions)

    • Respiratory System (20:46)

    • Respiratory System (40 Questions)

    • Circulatory & Lymphatic Systems (57:49)

    • Circulatory System (50 Questions)

    • Immune System (22:08)

    • Immune System (50 Questions)

    • Digestive System (35:45)

    • Digestive System (50 Questions)

    • Excretory System (28:07)

    • Excretory System (50 Questions)

    • Reproductive Systems (33:28)

    • Reproductive System (35 Questions)

    • Hormonal Control of the Reproductive System (30 Questions)

    • Muscle System (25:38)

    • Muscle System (40 Questions)

    • Skeletal System (17:50)

    • Skeletal System (40 Questions)

    • Skin System (9:11)

    • Skin System (25 Questions)

  • 05

    Developmental Biology

    • Developmental Biology (50 Questions)

  • 06

    Genetics

    • 4.1 Genetics (35:54)

    • Genetics & Heredity (40 Questions)

    • Basic Molecular Genetics (30 Questions)

    • 4.2 Meiosis and Recombination (19:00)

    • Meiosis (30 Questions)

    • 4.3 Hardy Weinberg Equilibrium (6:59)

  • 07

    Evolution, Ecology, and Behavior

    • Evolution (14:20)

    • Evolution (75 Questions)

    • Ecology (60 Questions)

    • Animal Behavior (25 Questions)

  • 08

    Retired Quizzes

    • Mitosis (25 Questions) Retired 8/5/21

    • Transport and Circulation (30 Questions) Retired 8/5/21

Chad's DAT Prep

Chad's DAT videos, quizzes, & study guides. Chad's DAT Practice Tests are included for a limited time!

Chad's OAT Prep

Chad's OAT videos, quizzes, & study guides. Chad's OAT Practice Tests are included for a limited time!