Living Biology and Cell Function

📋 Course Outline

1. Cellular Organization and Cell Types
2. Plasma Membrane Structure and Composition
3. Membrane Transport and Communication
4. Cytoplasm and Cellular Organelles
5. Cell Cycle DNA Replication and Mitosis
6. Cell Regulation Death and Meiosis
7. Genetic Material and Genome Organization
8. Gene Expression and Inheritance
9. Intercellular Messengers and Signaling
10. Receptors Potential and Cellular Responses

📖 1. Cellular Organization and Cell Types

🔑 Key Concepts & Definitions

• Cell : the fundamental structural, functional, and reproductive unit of life and the simplest organization capable of autonomous life
• Cell membrane : The cell is enclosed from the exterior by a membrane that selectively filters exchanges.

📝 Essential Points

📌 A eukaryotic cell possesses a nucleus and may be unicellular or multicellular, whereas a prokaryotic cell lacks a nucleus, as in bacteria.

💡 Memory Hook

Eukaryotes have a nucleus, whereas prokaryotes such as bacteria do not.