High School Biology

US High School

Course Overview

Lessons & Practice

I. Welcome

1. Chemistry of Life

2.1hr

1.1.1. Types of Chemical Bonds 5 min

1.1.2. Practice 1

1.1.3. Practice 2

1.2.1. Intermolecular Forces: Hydrogen Bonding5 min

1.2.2. Example 2 min

1.2.3. Practice 12 min

1.2.4. Practice 22 min

1.2.5. Practice 33 min

1.3.1. Intermolecular Forces: Van der Waals Interactions 11 min

1.3.2. Practice 13 min

1.3.3. Practice 2

1.4.1. Important Elements that Make Up Life4 min

1.4.2. Unique Properties of Water6 min

1.4.3. Practice 12 min

1.4.4. Practice 22 min

1.5.1. From Monomers to Polymers4 min

1.5.2. Practice 1

1.5.3. Practice 2

1.5.4. Practice 3

1.6.1. Proteins6 min

1.6.2. Protein Folding4 min

1.6.3. Functions of Proteins7 min

1.6.4. Example1 min

1.6.5. Practice 13 min

1.6.6. Practice 2

1.6.7. Practice 3

1.6.8. Practice 4

1.7.1. Carbohydrates (Sugars)5 min

1.7.2. Polysaccharides6 min

1.7.3. Practice 1

1.7.4. Practice 2

1.7.5. Practice 3

1.8.1. Lipids: Fats10 min

1.8.2. Lipids: Phospholipids5 min

1.8.3. Lipids: Steroids3 min

1.8.4. Example3 min

1.8.5. Practice 13 min

1.8.6. Practice 2

1.8.7. Practice 3

1.8.8. Practice 4

1.9.1. Nucleic Acids5 min

1.9.2. The DNA Double Helix5 min

1.9.3. Example2 min

1.9.4. Practice 11 min

1.9.5. Practice 22 min

1.9.6. Practice 33 min

1.9.7. Practice 445 sec

2. Cell Structure

1.7hr

2.1.1. Prokaryotic Cells5 min

2.1.2. Practice 1

2.1.3. Bacteria and Archaea Cell Wall Composition4 min

2.1.4. Practice 2

2.1.5. Practice 3

2.2.1. Eukaryotic Cells11 min

2.2.2. Illustrations of Cellular Components7 min

2.2.3. Practice 1

2.2.4. Practice 2

2.3.1. Eukaryotic Cells [Introduction for detailed courses]2 min

2.3.2. Ribosomes 3 min

2.3.3. Peroxisomes3 min

2.3.4. Mitochondria and Chloroplasts6 min

2.3.5. Plant versus Animal Cells3 min

2.3.6. Practice 1

2.3.7. Practice 2

2.3.8. Practice 3

2.3.9. Practice 4

2.4.1. Endosymbiont Theory5 min

2.4.2. Example 1

2.4.3. Practice 1

2.4.4. Practice 2

2.4.5. Practice 3

2.5.1. The Endomembrane System2 min

2.5.2. The Nucleus5 min

2.5.3. The Endoplasmic Reticulum (ER)4 min

2.5.4. The Golgi Apparatus3 min

2.5.5. Lysosomes, Vacuoles and Vesicles

2.5.6. Example 1

2.5.7. Practice 1

2.5.8. Practice 2

2.5.9. Practice 3

2.6.1. Cytoskeleton Overview [short lesson]5 min

2.6.2. Microtubules6 min

2.6.3. Actin Microfilaments4 min

2.6.4. Intermediate Filaments3 min

2.6.5. Practice 1

2.6.6. Practice 2

2.6.7. Illustrations of the Cytoskeleton4 min

2.7.1. Motor Proteins5 min

2.7.2. Flagella and Cilia3 min

2.7.3. Practice 1

2.7.4. Practice 2

2.8.1. Extracellular Matrix2 min

2.8.2. Junctions and Adhesions5 min

2.8.3. Practice 1

2.8.4. Practice 2

2.8.5. Practice 3

4. Energy & Metabolism

2.1hr

4.1.1. Overview of Metabolism4 min

4.1.2. Nutrients Required by Cells4 min

4.1.3. Practice 11 min

4.1.4. Practice 22 min

4.1.5. Practice 32 min

4.2.1. Redox (Reduction-Oxidation) Reactions7 min

4.2.2. Practice 13 min

4.2.3. Practice 23 min

4.3.1. The Laws of Thermodynamics8 min

4.3.2. Example 2 min

4.3.3. Practice2 min

4.4.1. Potential and Kinetic Energies3 min

4.4.2. Practice 11 min

4.4.3. Energy in Reactions7 min

4.4.4. Example 15 min

4.4.5. Activation Energy3 min

4.4.6. Gibbs Free Energy8 min

4.4.7. Practice 22 min

4.5.1. Coupled Reactions6 min

4.5.2. Example 1 min

4.5.3. Practice 1

4.5.4. Practice 22 min

4.6.1. ATP and the Proton Motive Force (PMF)6 min

4.6.2. Example1 min

4.6.3. Practice 2 min

4.7.1. Enzymes6 min

4.7.2. Enzyme Activity4 min

4.7.3. Example1 min

4.7.4. Practice 1 min

4.8.1. Enzyme Regulation10 min

4.8.2. Feedback Inhibition3 min

4.8.3. Example 13 min

4.8.4. Example 26 min

4.8.5. Practice 12 min

5. Cellular Respiration

1.5hr

5.1.1. Overview of Cellular Respiration4 min

5.2.1. Glycolysis4 min

5.2.2. Practice 1

5.2.3. Practice 22 min

5.2.4. Practice 3

5.3.1. Steps of Glycolysis: Intro and Stage I [Detailed]7 min

5.3.2. Steps of Glycolysis: Stages II and III [Detailed]9 min

5.3.3. Practice 1

5.3.4. Practice 2

5.3.5. Practice 3

5.3.6. Practice 4

5.4.1. Energy of Glucose Metabolism7 min

5.4.2. Practice 1

5.5.1. Glycolysis Regulation8 min

5.5.2. Practice 1

5.5.3. Practice 2

5.6.1. Glycolysis Full Sequence of Reactions and Summary [detailed]8 min

5.7.1. Pyruvate Processing4 min

5.7.2. Practice 1

5.8.1. The Citric Acid Cycle3 min

5.8.2. Practice 12 min

5.8.3. Practice 2

5.8.4. Practice 3

5.9.1. The Citric Acid Cycle - Substrates and Enzymes [detailed]10 min

5.9.2. Practice 1

5.9.3. Practice 2

5.9.4. Practice 3

5.10.1. Utilization of TCA Intermediates2 min

5.11.1. Electron Transport Chain Overview3 min

5.11.2. Example

5.11.3. Practice 12 min

5.11.4. Practice 23 min

5.12.1. The Electron Transport Chain8 min

5.12.2. Example

5.12.3. Practice 1

5.12.4. Practice 2

5.12.5. Practice 3

5.12.6. Practice 4

5.13.1. Fermentation3 min

5.13.2. Practice 1

5.13.3. Practice 2

5.13.4. Practice 3

6. Photosynthesis

1.1hr

6.1.1. Plant Structures for Photosynthesis4 min

6.1.2. Practice 1

6.1.3. Practice 2

6.2.1. Photosynthesis [short]9 min

6.2.2. Practice 12 min

6.2.3. Practice 2

6.3.1. Light-Dependent Reactions of Photosynthesis [detailed]10 min

6.3.2. Non-Cyclic and Cyclic Versions of Light-Dependent Reactions3 min

6.3.3. Practice 11 min

6.3.4. Practice 22 min

6.4.1. Calvin Cycle [Carbon Fixation]8 min

6.4.2. Example3 min

6.4.3. Practice 12 min

6.4.4. Practice 23 min

6.5.1. Photorespiration5 min

6.5.2. Practice 13 min

6.6.1. C4 Plants2 min

6.6.2. Practice 1

6.7.1. CAM Plants4 min

6.7.2. Practice 12 min

8. DNA Replication & Repair

2.4hr

8.1.1. Review of DNA Structure10 min

8.1.2. Practice 12 min

8.1.3. Practice 2

8.2.1. Meselson-Stahl Experiment9 min

8.2.2. Practice 12 min

8.2.3. Example: Applying the Meselson-Stahl Experiment2 min

8.3.1. DNA Replication in Cells14 min

8.3.2. Example: Leading and Lagging Strands2 min

8.3.3. Practice 12 min

8.3.4. Practice 23 min

8.3.5. Example: Complete the Replication Bubble4 min

8.4.1. Telomerase4 min

8.4.2. Practice 11 min

8.4.3. Practice 22 min

8.5.1. Types of DNA Mutations9 min

8.5.2. Practice 1

8.5.3. Practice 2

8.5.4. Sources of Mutation: DNA Slippage5 min

8.5.5. Sources of Mutation: Tautomeric Shifts7 min

8.5.6. Example: Tautomeric Shifts4 min

8.5.7. Sources of Mutation: Copy Number Variations3 min

8.5.8. Sources of Mutation: Mobile Elements7 min

8.6.1. Repair of Mutations During Replication [Exonuclease Activity and Mismatch Repair]10 min

8.6.2. Repair of Mutations by Mutagens [Nucleotide Excision Repair]3 min

8.6.3. Practice 12 min

8.7.1. Repair of DNA Double Stranded Breaks [detailed]9 min

8.7.2. Practice 12 min

8.8.1. Polymerase Chain Reaction (PCR)10 min

8.8.2. Primer Design3 min

8.8.3. Example 15 min

8.8.4. Practice 12 min

8.8.5. Practice 2

9. Transcription and Translation

1.8hr

9.1.1. The Central Dogma of Biology4 min

9.1.2. Practice 1

9.1.3. Practice 22 min

9.1.4. Practice 32 min

9.2.1. Genes and mRNA8 min

9.2.2. General Structure of mRNA4 min

9.2.3. The Genetic Code8 min

9.2.4. Reading Frame3 min

9.2.5. Practice 13 min

9.2.6. Practice 22 min

9.2.7. Practice 32 min

9.2.8. Practice 43 min

9.2.9. Summary of Genes and mRNA

9.3.1. Initiation8 min

9.3.2. Elongation7 min

9.3.3. Termination4 min

9.3.4. Practice 14 min

9.3.5. Practice 22 min

9.3.6. Practice 3

9.4.1. Transcription In Eukaryotes9 min

9.4.2. Practice 1

9.5.1. RNA Maturation in Eukaryotes8 min

9.5.2. Example 3 min

9.5.3. Practice 11 min

9.5.4. Practice 23 min

9.5.5. mRNA Maturation - Theory3 min

9.6.1. Translation into Proteins9 min

9.6.2. Differences in Eukaryotic and Prokaryotic Translation3 min

9.6.3. Example 15 min

9.6.4. Example 2

9.6.5. Transcription vs. Translation Chart

9.6.6. Practice 1

9.6.7. Practice 2

10. Meiosis

25min

10.1.1. Meiosis I10 min

10.1.2. Chromosomal Crossover3 min

10.1.3. Meiosis Nomenclature3 min

10.1.4. Practice 1

10.1.5. Practice 2

10.1.6. Practice 3

10.2.1. Meiosis II5 min

10.2.2. Practice 1

10.2.3. Practice 2

10.2.4. Practice 3

10.2.5. Practice 4

10.2.6. Example: Graphing Ploidy & C-value Coefficients4 min

11. Mendelian Genetics

1.8hr

11.1.1. History of Mendelian Genetics4 min

11.1.2. Basics of Probability for Genetics5 min

11.1.3. Example 12 min

11.1.4. Example 22 min

11.1.5. Practice 1

11.2.1. Alleles3 min

11.2.2. Genotype and Phenotype5 min

11.3.1. Incomplete Dominance and Co-Dominance3 min

11.3.2. Example4 min

11.3.3. Practice 1

11.4.1. Mendel's Law of Segregation10 min

11.4.2. Mendel's Law of Independent Assortment6 min

11.4.3. Punnett Square Rules4 min

11.4.4. Example 15 min

11.4.5. Example 29 min

11.4.6. Practice 1

11.4.7. Practice 2

11.4.8. Practice 3

11.4.9. Practice 4

11.4.10. Cheatsheet: Inheritance Terminology

11.5.1. Forked Line Method5 min

11.5.2. Probability Method4 min

11.5.3. Practice 1

11.5.4. Practice 2

11.6.1. Pedigree Analysis9 min

11.7.1. Inheritance of Autosomal Traits9 min

11.7.2. Example 1

11.7.3. Example 2

11.8.1. Inheritance of X-linked Traits

11.8.2. Example 13 min

11.8.3. Example 2

11.8.4. Example 3

11.9.1. Practice 1

11.9.2. Practice 2

11.9.3. Practice 3

11.9.4. Practice 4

11.9.5. Practice 5

11.9.6. Practice 6

11.9.7. Practice 7

11.9.8. Practice 8

11.10.1. Practice 1

11.10.2. Practice 2

11.10.3. Practice 3

11.11.1. Blood Types2 min

11.11.2. Practice 1

11.11.3. Pleiotropy, Epistasis and Polygenic Inheritance5 min

11.11.4. Practice 2

11.11.5. Practice 3

11.11.6. Example: Epistasis5 min

12. Modern Concepts of Inheritance

33min

12.1.1. Genetic Linkage4 min

12.1.2. Recombination Frequencies and Linkage Maps6 min

12.1.3. Practice 1

12.1.4. Practice 2

12.1.5. Practice 3

12.1.6. Practice 4

12.2.1. Karyotyping3 min

12.2.2. Practice

12.3.1. Chromosomal Nondisjunction, Aneuploidy and Polyploidy6 min

12.3.2. Example2 min

12.3.3. Practice 1

12.3.4. Practice 27 min

12.4.1. Duplications, Deletions and Inversions4 min

12.4.2. Practice 1

13. Lab Techniques for Biology

1.2hr

13.1.1. Gene Mapping4 min

13.2.1. DNA Sequencing9 min

13.3.1. Centrifugation2 min

13.3.2. Chromatography4 min

13.3.3. Practice

13.4.1. Protein Detection Techniques6 min

13.4.2. SDS-PAGE (Electrophoresis)6 min

13.4.3. Mass Spectrometry2 min

13.4.4. Practice 1

13.5.1. (Agarose) Gel Electrophoresis 3 min

13.6.1. Proteomics4 min

13.6.2. Chromatin Immuno-Precipitation (ChIP) 2 min

13.6.3. Practice 1

13.6.4. Practice 2

13.6.5. Practice 3

13.7.1. Southern Blot2 min

13.7.2. Northern Blot2 min

13.7.3. Practice

13.8.1. Genome Editing11 min

13.8.2. CRISPR [detailed]9 min

13.8.3. Practice 1

13.8.4. Practice 2

13.9.1. Gene Cloning5 min

13.9.2. Plasmids2 min

13.9.3. Restriction Enzymes or Endonucleases3 min

14. The Scientific Method

5min

14.I. Chapter Intro34 sec

14.1.1. The Scientific Method5 min

14.1.2. Example

14.1.3. Example

14.1.4. Practice

14.1.5. Practice

14.Q. Scientific Method Quiz4 Qns

15. Phylogenetic Trees

9min

15.I. Intro: Classification1 min

15.1.1. Phylogenetic Trees4 min

15.1.2. Phylogenetic Trees and Parsimony4 min

15.1.3. Practice

15.1.4. Practice

15.1.5. Practice

15.Q. Quiz: Classification6 Qns

16. Naming Species

4min

16.1.1. Scientific Nomenclature - Linnaean System4 min

16.1.2. Practice

16.1.3. Practice

16.1.4. Practice

17. Evolution

1.2hr

17.I. Intro: Evolution31 sec

17.1.1. Charles Darwin6 min

17.1.2. Practice

17.1.3. Practice

17.1.4. Practice

17.2.1. Descent with Modification6 min

17.2.2. Practice

17.2.3. Practice

17.2.4. Practice

17.2.5. Practice

17.3.1. The Modern Synthesis6 min

17.3.2. Practice

17.3.3. Practice

17.4.1. Evolution of Populations5 min

17.4.2. Example2 min

17.4.3. Practice46 sec

17.4.4. Practice46 sec

17.4.5. Practice1 min

17.4.6. Graphing Allele Frequencies Over Time7 min

17.4.7. Practice: Relative Fitness5 min

17.5.1. Hardy-Weinberg Principle5 min

17.5.2. Hardy-Weinberg Equation5 min

17.5.3. Example4 min

17.5.4. Practice

17.5.5. Practice

17.5.6. Example: Applying HWE during experimentation5 min

17.5.7. Practice: Assortative Mating10 min

17.Q. Quiz: Evolution8 Qns

18. Speciation

9min

18.I. Intro: Origin of Species39 sec

18.1.1. Origin of Species9 min

18.1.2. Practice

18.1.3. Practice

18.1.4. Practice

18.Q. Quiz: Origin of Species5 Qns

19. Overview of Animals

17min

19.I. Intro: Overview of Animals55 sec

19.1.1. Overview of Animal Structure2 min

19.1.2. Animal Reproduction and Development2 min

19.1.3. Practice

19.1.4. Cell Structure and Specialization5 min

19.1.5. Practice

19.1.6. Practice

19.1.7. Practice

19.2.1. Animal Body Cavities2 min

19.2.2. Practice

19.3.1. Evolution of Animals6 min

19.3.2. Practice

19.3.3. Practice

19.Q. Quiz: Overview of Animals7 Qns

20. Animal Physiology

23min

20.1.1. Overview of Animal Physiology2 min

20.1.2. Practice

20.2.1. Animal Tissue Types2 min

20.2.2. Practice

20.2.3. Practice

20.3.1. Thermoregulation5 min

20.3.2. Practice

20.3.3. Practice

20.4.1. Osmoregulation5 min

20.4.2. Practice

20.4.3. Practice

20.5.1. Circulation5 min

20.5.2. Practice

20.5.3. Practice

20.5.4. Practice

20.6.1. Respiration5 min

20.6.2. Practice

20.6.3. Practice

21. Ecology

52min

21.1.1. Introduction2 min

21.1.2. Food Webs6 min

21.1.3. Practice

21.1.4. Practice

21.1.5. Practice

21.2.1. Biomes and Abiotic Factors5 min

21.2.2. Practice

21.2.3. Practice

21.3.1. Carbon Cycle3 min

21.3.2. Nitrogen Cycle1 min

21.3.3. Phosphorous Cycle1 min

21.3.4. Practice

21.3.5. Practice

21.3.6. Practice

21.4.1. Community Ecology4 min

21.4.2. Disturbances5 min

21.4.3. Practice

21.4.4. Practice

21.4.5. Practice

21.5.1. Species Interactions5 min

21.5.2. Species Interaction Fillable Summary Sheet

21.5.3. Practice

21.5.4. Practice

21.6.1. Life Histories6 min

21.6.2. Practice

21.6.3. Life Tables4 min

21.6.4. Practice2 min

21.7.1. Survivorship2 min

21.7.2. Practice

21.8.1. Population Growth4 min

21.8.2. Density Dependent Population Growth3 min

21.8.3. Practice

21.8.4. Practice

21.8.5. Practice

21.8.6. Practice

I Welcome

Free Activity

Welcome to High School Biology!
Feel free to go through this course at your own pace
Use the table of contents 📃 on the left to skip to parts you need help with
Watch the video ▶ or read the written lessons 📖
Speed up ⏩ or slow down ⏪ the videos 
Use the "Ask a question"❓ feature below each lesson/question any time!

Ask a Question

Upgrade to Wizeprep Plus and get unlimited questions answered.

Unanswered

R

Ronaldo d

Worm

H

Holly D

Instructor

sorry, what are you asking?  thanks 

Want a tour?