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Chapter 3

The Cellular Level of Organization

6 things you can play with
🧱01

The Cell Membrane

The fluid mosaic: a double fat layer with proteins, cholesterol, and sugar tags.

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πŸšͺ02

Membrane Transport

See how things get in and out: diffusion, facilitated diffusion, the Na⁺/K⁺ pump, and bulk transport.

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🏭03

Tour the Cell

Click each organelle to light it up and learn its job.

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🧬04

Protein Synthesis

The central dogma: first transcription, then translation.

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πŸ”„05

Cell Cycle & Mitosis

From interphase into mitosis. Watch chromosomes line up and split.

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πŸ’§06

Tonicity & Osmosis

Isotonic, hypotonic, or hypertonic? See the cell stay the same, swell, or shrivel.

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