Degree-Level Guide with Revision Notes, Diagrams & Quizzes
Table of Contents
• Overview of Cell Biology & Cell Types
• Organelles & Functions + Plant vs Animal Cells
• Cell Membrane & Transport
• Cell Cycle & Division
• Cell Communication & Signaling Pathways
• Metabolism & Energy
• Techniques in Cell Biology
• Diseases & Cell Dysfunction
• Revision Tips & Exercises
• Quizzes & Practice Questions
• Summary & Key Takeaways
• Suggested Books & Further Reading
Section 1 – Overview of Cell Biology
Definition:
Cell Biology is the study of cells, including their structure, function, life cycle, and interactions.
, Key Points:
• ✔️
Cells are the basic unit of life
• ✔️
Cell Theory: All organisms are made of cells; all cells arise from pre-existing cells
• ✔️
Cellular processes include metabolism, signaling, division, differentiation, apoptosis
Prokaryotic vs Eukaryotic Cells:
Feature Prokaryotic Eukaryotic
Nucleus None True nucleus
Organelles Few, non-membrane Membrane-bound
bound
Size 0.1–5 µm 10–100 µm
DNA Circular Linear in chromosomes
Examples Bacteria, Archaea Animals, Plants, Fungi, Protists
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