Fundamentals of Cell Biology

📋 Course Outline

1. Cell Theory Principles
2. Prokaryotic Cell Features
3. Eukaryotic Cell Features
4. Cell Membrane Structure
5. Membrane Transport Mechanisms
6. Organelle Functions
7. Cytoskeleton Components
8. Cell Division Processes
9. Cell Signaling Pathways
10. Cellular Metabolism Pathways

📖 1. Cell Theory Principles

🔑 Key Concepts & Definitions

• Cell Theory: Fundamental biological principle stating that all living organisms are composed of cells, the cell is the basic unit of life, and all cells arise from pre-existing cells.
• Prokaryotic Cells: Cells lacking a nucleus and membrane-bound organelles, typically smaller and simpler, such as bacteria and archaea.
• Eukaryotic Cells: Cells with a nucleus and membrane-bound organelles, generally larger and more complex, found in plants, animals, fungi, and protists.
• Organelles: Specialized structures within eukaryotic cells that perform distinct functions (e.g., nucleus, mitochondria, ER).
• Cell Membrane: Semi-permeable phospholipid bilayer that controls substance movement in and out of the cell, facilitating communication and transport.
• Cell Division: The process by which a cell reproduces, including mitosis (for growth and repair) and meiosis (for gamete formation).

📝 Essential Points