We will explore the molecular mechanisms and foundations of biology from a physics perspective. The course material will enable physicists to model biological systems from a molecular perspective, laying the foundations of proteins, DNA, RNA, lipids and small molecules. The aim is to gain a fundamental molecular understanding of the inner workings of cells and biological processes. Links to modern biotechnology allows to assess the background of the many startup companies that emerged from LMU Biophysics (Nanion, NanoTemper, GATTAquant, Amplifold). The lecture will include an introduction to modeling reaction-diffusion systems with Comsol.