BIOL 211: Principles of Biology

Discover the dynamic nature of the cell's lipid bilayer. Delve into the roles of unsaturated and saturated phospholipids in membrane fluidity. Understand temperature's influence on this vital cellular component.

Explore the fascinating process of protein digestion, debunking misconceptions about where it starts. Discover the roles of enzymes like pepsin and HCl in breaking down proteins in the stomach.

Discover the critical role iodide ions play in regulating metabolism through their involvement in thyroid hormones. Learn how active transport enables the movement of these ions in the body, requiring ATP energy. Uncover common sources of iodide ions and their importance in medical applications.

Discover the intricate details of the pelvis anatomy as we analyze and correct misconceptions about its structure and components, using sketches for clarity.

Explore the intricacies of nucleic acids, the macromolecules essential to life. Understand the roles of DNA and RNA, and delve into the structure of nucleotides—the fundamental building blocks of these crucial biomolecules.

Explore the distinct characteristics of muscle tissues and their functions. Understand the differences between skeletal, cardiac, and smooth muscles. Get insights into the anatomy of striations, cell shapes, and nuclei.