Lesson 1 ·Class 9 · Cell : The Unit of Life · Match Lab
Discovering the Cell
How we found out life is made of cells.
Match each scientist to what they actually discovered.
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Free play — tap an item on the left, then its partner on the right; each link tells you why. Switch to when you're ready to test yourself.
Hooke saw dead cork; Leeuwenhoek saw living microbes; Virchow added the third part of the cell theory.
What this lesson covers
Challenges to clear
- Match every scientist.
- Connect the scientist who showed that new cells only come from existing cells.
The task
Match each scientist to what they actually discovered.
What this lesson covers
- Robert Hooke (1665) — Saw empty boxes in cork and named them cells (He was looking at dead cell walls, not living cells.)
- Anton van Leeuwenhoek — First saw living cells and micro-organisms (Bacteria, protozoa and sperm — the first sight of the living microscopic world.)
- Robert Brown — Discovered the nucleus (He found it in orchid cells and recognised it as a constant structure.)
- J. E. Purkinje — Named the living contents of a cell protoplasm (Protoplasm = cytoplasm plus nucleus.)
- Schleiden and Schwann — Proposed the cell theory (Schleiden studied plants, Schwann animals; together they generalised.)
- Rudolf Virchow — Showed new cells arise from existing cells (Omnis cellula e cellula — this completed the cell theory.)
Hint
Hooke saw dead cork; Leeuwenhoek saw living microbes; Virchow added the third part of the cell theory.