Cellular Transport: Directed Motion

This lecture by the instructor covers the different types of directed motion in cellular systems, including translational and polymerization motors, as well as translocation and rotary motors. The mechanisms of motor movement and their roles in transporting vesicles, organelles, and biomolecules across membranes are discussed, emphasizing the importance of cytoskeletal networks. Experimental methods for studying molecular motors are also presented, such as single fluorophore imaging. The lecture delves into the concept of Brownian ratchets and thermal ratchets, explaining how motors achieve unidirectional motion. Furthermore, the lecture explores the significance of motor proteins in cellular processes, highlighting the bacterial flagellar motor as a case study.