Cell theory & scientists

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What is the cell theory?

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The cell theory states that all living organisms are composed of cells, the cell is the basic unit of life, and all cells arise from pre-existing cells.

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Who proposed that all plants are made of cells?

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Matthias Schleiden.

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Who concluded that all animals are made of cells?

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Theodor Schwann.

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Who was the first to observe bacteria?

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Anton van Leeuwenhoek.

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What type of cell lacks a true nucleus?

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Prokaryote.

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What type of cell has a true nucleus?

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Eukaryote.

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What is a prokaryotic cell?

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A prokaryotic cell is a simple, single-celled organism that lacks a nucleus and membrane-bound organelles.

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What is a eukaryotic cell?

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A eukaryotic cell is a complex cell that has a nucleus and membrane-bound organelles.

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What did Robert Hooke discover?

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Robert Hooke discovered cells by observing cork under a microscope.

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What is the significance of Rudolf Virchow's contribution to cell theory?

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Rudolf Virchow concluded that all cells come from pre-existing cells, which is a key principle of cell theory.