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Lesson 4
The cell — building block of life
📖 Lesson
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🎯 Quiz — pick the translation
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✅ Lesson done
Every organism is built from cells — microscopic factories of life. You have ~37 trillion! A cell has a nucleus (control), mitochondria (energy) and a membrane.
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Cell
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Nucleus
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Mitochondria
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Chloroplast
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Blood cell
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Neuron
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Test yourself!
Quiz — pick the translation →
🖨 Worksheet
Practice the topic with the trainer — like after class