Cell Theory

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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. 3) All cells come from pre-existing cells.

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What are the three main principles of Cell Theory?

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1) All living things are made up of cells. 2) Cells are the basic unit of life. 3) All cells arise from existing cells.

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Who proposed that all plants are made of cells?

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Matthias Schleiden proposed that all plants are made of cells.

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Who stated that all animals are made of cells?

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Theodore Schwann stated that all animals are made of cells.

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What type of cells lack a nucleus?

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Prokaryotic cells lack a nucleus.

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What type of cells contain a nucleus?

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Eukaryotic cells contain a nucleus.

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What is the smallest unit of life?

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The cell is the smallest unit of life.

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What did Rudolf Virchow contribute to Cell Theory?

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Rudolf Virchow contributed the principle that all cells come from other living cells.

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What is the function of the cell membrane?

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The cell membrane controls the movement of substances in and out of the cell.

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What is cytoplasm?

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Cytoplasm is the jelly-like substance within a cell that contains organelles.