The Cell Theory

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What is the Cell Theory?

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The Cell Theory states that all living things are made up of cells, cells are the basic unit of life, and all cells come from pre-existing cells.

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Who is credited with the invention of the first compound microscope?

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Zacharias Janssen.

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Which scientist proposed that all plant tissues are composed of cells?

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Matthias Schleiden.

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What is the significance of Robert Hooke in cell biology?

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Robert Hooke is known for coining the term 'cell' after observing cork under a microscope.

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Who was the first scientist to observe living cells under a microscope?

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Anton van Leeuwenhoek.

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What did Rudolf Virchow contribute to the Cell Theory?

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Rudolf Virchow proposed that all cells come from other cells.

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What are the three main components of the Cell Theory?

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1. All living things are made of cells. 2. Cells are the basic unit of life. 3. All cells come from pre-existing cells.

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What did Theodor Schwann contribute to the Cell Theory?

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Theodor Schwann proposed that all animal tissues are composed of cells.

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What is a compound microscope?

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A compound microscope is an optical instrument that uses multiple lenses to magnify small objects.

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What is the difference between prokaryotic and eukaryotic cells?

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Prokaryotic cells do not have a nucleus or membrane-bound organelles, while eukaryotic cells do.