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Official Ninja Nerd Website: https://ninjanerd.org Ninja Nerds! In this high-yield cell biology lecture, Professor Zach Murphy presents a clear and organized explanation of membrane transport mechanisms, focusing on Passive Transport, Active Transport, and the processes of Endocytosis and Exocytosis. This lecture bridges foundational cell biology with clinical and physiologic relevance, helping you understand how substances move across the plasma membrane. We begin by distinguishing between passive transport mechanisms—such as simple diffusion, facilitated diffusion, and osmosis—which do not require cellular energy, and rely on concentration gradients and membrane permeability. From there, we explore active transport, which uses ATP to move molecules against their gradient via primary and secondary active transporters like the Na⁺/K⁺ ATPase and sodium-glucose cotransporters. The second half of the lecture dives into vesicular transport, covering endocytosis (including phagocytosis, pinocytosis, and receptor-mediated endocytosis) and exocytosis, detailing how large molecules are taken in or expelled by cells through vesicle fusion events. This lecture is perfect for mastering transport dynamics across membranes and reinforcing concepts that appear in basic science and clinical scenarios. Enjoy the lecture and support us below! Table of Contents: 00:00 Lab 00:31 Simple Diffusion 10:37 Facilitated Diffusion 26:46 Primary Active Transport 39:57 Secondary Active Transport 57:09 Vesicular Transport 57:42 Pinocytosis 1:01:15 Phagocytosis 1:07:44 Receptor-Mediated Endocytosis 1:15:29 Exocytosis 1:22:47 Comment, Like, SUBSCRIBE! 🌐 Official Links Website: https://www.ninjanerd.org Podcast: https://podcast.ninjanerd.org Store: https://merch.ninjanerd.org 📱 Social Media https://www.tiktok.com/@ninjanerdlectures https://www.instagram.com/ninjanerdlectures https://www.facebook.com/ninjanerdlectures https://x.com/ninjanerdsci/ https://www.linkedin.com/company/ninja-nerd/ 💬 Join Our Community Discord: https://discord.gg/3srTG4dngW #ninjanerd #MembraneTransport #CellBiology
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