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AP Biology

8 units · 39 topics · 1,327 lessons · Exam: May

From cells to ecosystems, taught through the four big ideas: evolution, energetics, information storage, and systems interactions.

Start: Properties of Water Find a tutor Exam Sprint
  1. 1Chemistry of Life
  2. 2Cells
  3. 3Cellular Energetics
  4. 4Cell Communication and Cell Cycle
  5. 5Heredity
  6. 6Gene Expression and Regulation
  7. 7Natural Selection
  8. 8Ecology
Course pathAll videos
1

Chemistry of Life

Water and the molecules that make up living things.

  1. 1Properties of WaterUp next32 lessons
  2. 2Elements of Life23 lessons
  3. 3Biological Macromolecules40 lessons
  4. 4Proteins and Nucleic Acids: Structure and Function5 lessons
2

Cells

Organelles, membranes, and how cells move materials.

  1. 1Cell Organelles17 lessons
  2. 2Cell Size and Surface Area43 lessons
  3. 3Membrane Structure and Transport61 lessons
  4. 4Tonicity and OsmoregulationCoverage growing
  5. 5Compartmentalization and the Origin of Organelles31 lessons
3

Cellular Energetics

Enzymes, photosynthesis, and cellular respiration.

  1. 1Enzymes and Activation Energy42 lessons
  2. 2Cellular Energy14 lessons
  3. 3Photosynthesis61 lessons
  4. 4Cellular Respiration49 lessons
4

Cell Communication and Cell Cycle

Signaling, feedback, and cell division.

  1. 1Cell Signaling Pathways27 lessons
  2. 2Feedback and Homeostasis47 lessons
  3. 3The Cell Cycle and Mitosis45 lessons
  4. 4Regulation of the Cell CycleCoverage growing
5

Heredity

Meiosis and patterns of inheritance.

  1. 1Meiosis and Genetic Variation51 lessons
  2. 2Mendelian Genetics and Chi-Square45 lessons
  3. 3Non-Mendelian Genetics11 lessons
  4. 4Environmental Effects on Phenotype27 lessons
6

Gene Expression and Regulation

DNA, RNA, protein, and how genes are controlled.

  1. 1DNA Structure and Replication42 lessons
  2. 2Transcription and Translation57 lessons
  3. 3Operons and Gene Regulation32 lessons
  4. 4Gene Expression and Cell SpecializationCoverage growing
  5. 5Mutations39 lessons
  6. 6Biotechnology35 lessons
7

Natural Selection

How populations evolve, and the evidence for it.

  1. 1Natural and Artificial Selection44 lessons
  2. 2Population Genetics25 lessons
  3. 3Hardy-Weinberg Equilibrium54 lessons
  4. 4Evidence of Evolution and Common Ancestry18 lessons
  5. 5PhylogenyCoverage growing
  6. 6Speciation and Extinction42 lessons
  7. 7Origins of Life on EarthCoverage growing
8

Ecology

Energy, populations, communities, and ecosystems.

  1. 1Responses to the EnvironmentCoverage growing
  2. 2Energy Flow Through Ecosystems36 lessons
  3. 3Population Ecology29 lessons
  4. 4Community Ecology and Biodiversity38 lessons
  5. 5Disruptions in EcosystemsCoverage growing