IB Biology Sub-topic B2.2 Notes
This page contains our IB Biology notes for sub-topic B2.2. By reading each one of these notes, you will fully cover the content for IB Biology 'Organelles & compartmentalisation'.
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Organelles
You previously learned the basics of cellular structure, including the compartmentalization of eukaryotes into organelles. Organelles are defined as discrete subunits of cells adapted to perform specific functions. You are expected to understand the organelles include:
- Nucleus
- Endoplasmic reticulum
- Golgi apparatus
- Mitochondria
- Chloroplasts
- Vacuoles
- Vesicles
- Ribosomes
- Plasma membrane
Note that the cell wall, cytoskeleton, and cytoplasm are not considered organelles as they are structural components that do not necessarily perform specific functions.
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