Explore common biological topics by studying the smallest biological units: molecules and cells. You can earn a free certificate of completion in this online Biology course, or it to earn credit in leading college programs.

In our Biology course, you will learn to:

  • characterize the biological principles common to all organisms;
  • explain how information is stored, copied, transferred, and expressed in biological systems; and
  • apply the scientific method to solve problems in real-world settings.

  • Time: 57 hours
  • Free Certificate
Detailed introduction to molecular biology, including proteins, carbohydrates, lipids, and nucleic acids, water, and other compounds that make up the cell. Particular emphasis on the cell membrane, mitosis and meiosis, genetics and gene expression, transcription and translation, and cellular metabolism.