BIOL 2203: Molecules to Humankind I

Discover the essential role of the mantle in mollusks, the protective tissue responsible for shell secretion or organ protection. Explore how land snails, clams, and octopuses utilize their mantles for distinct purposes.

Explore the underlying causes of muscle fatigue and the crucial role of lactic acid. Understand the impact of ATP depletion and anaerobic metabolism on muscle performance. Gain insights into planning effective exercise and recovery strategies.

Explore the hierarchy of biological structures to identify the smallest independent unit of life. This video assesses options from organelles to organs, elucidating the pivotal role of the cell in life's tapestry.

Explore active and passive transport and understand how ion pumps and phagocytosis fit in. Discover endocytosis as an active transport where cells engulf particles. Differentiate between active transport mechanisms and passive methods like facilitated diffusion.

Unravel the intricacies of a eukaryotic cell, its DNA structure, and the proteins that aid its function. Delve into the roles of cohesin, condensin, and histones, and discover the difference between chromatin, nucleosomes, and sister chromatids. Gain clarity on the pivotal structure ensuring successful cell division.

Learn about the path of blood flow in the mammalian heart and circulatory system. Discover how oxygen-rich blood from the lungs enters the left atrium and understand why other statements about blood flow are incorrect.