Cell Theory & Cell Theory Scientists CCA

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What is Cell Theory?

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Cell Theory is a fundamental concept in biology that states: 1) All living things are composed of cells, 2) Cells are the basic unit of life, and 3) All cells arise from pre-existing cells.

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Who is credited with the discovery of cells?

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Robert Hooke is credited with the discovery and naming of cells while observing cork under a microscope.

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What did Theodor Schwann contribute to Cell Theory?

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Theodor Schwann noted that all animals are made of cells and helped formulate the first two parts of Cell Theory.

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What did Matthias Schleiden conclude about plants?

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Matthias Schleiden concluded that all plants are made of cells.

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What is the smallest unit of life?

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The cell is the smallest unit of life that can perform all life processes.

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What are the main components of a cell?

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The main components of a cell include the cell membrane, cytoplasm, nucleus, mitochondria, and endoplasmic reticulum.

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What does it mean that cells are the basic unit of life?

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It means that cells are the smallest structures that can carry out all functions necessary for life.

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What instrument helped develop Cell Theory?

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The microscope was the key instrument that allowed scientists to observe and study cells.

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Who proposed that all cells come from pre-existing cells?

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Rudolf Virchow proposed that all cells come from pre-existing cells.

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What is the significance of the cell membrane?

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The cell membrane is significant because it protects the cell and regulates what enters and exits the cell.