Cell Biology | Cell Structure & Function

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Ninja Nerds!
In this foundational cell biology lecture, Professor Zach Murphy provides a detailed and organized overview of Cell Structure and Function, helping you understand the roles of key organelles and how they work together to maintain cellular homeostasis.

We begin by breaking down the plasma membrane, emphasizing its phospholipid bilayer, membrane proteins, and selective permeability. From there, we explore major intracellular structures, including the nucleus, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes, peroxisomes, and mitochondria—explaining their individual functions and how they coordinate to support growth, metabolism, protein synthesis, and waste management.

The lecture also covers the cytoskeleton, detailing the roles of microfilaments, intermediate filaments, and microtubules in maintaining cell shape, intracellular transport, and cell division. We link structure to function throughout, making understanding how cellular dysfunction can lead to disease easier.

This lecture is the perfect starting point for mastering cell biology and sets the stage for understanding more complex processes like signaling, transport, and division.

Enjoy the lecture and support us below!

Table of Contents:
00:00 Intro and Overview
00:43 Nucleus
01:06 Nuclear Envelope (Inner and Outer Membranes)
02:50 Nuclear Pores
03:52 Nucleolus
04:51 Chromatin
07:30 Rough and Smooth Endoplasmic Reticulum (ER)
18:20 Golgi Apparatus
23:03 Cell Membrane
27:25 Lysosomes
31:20 Peroxisomes
35:38 Mitochondria
40:04 Ribosomes (Free and Membrane-Bound)
43:20 Cytoskeleton (Actin, Intermediate Filaments, Microtubules)
54:50 Comment, Like, SUBSCRIBE!

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