Cells Unit Review

Front

What is the Cell Theory?

Back

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

Front

Why are viruses considered non-living?

Back

Viruses are considered non-living because they are not made of cells and cannot reproduce on their own; they require a host cell.

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Who was Anton van Leeuwenhoek?

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Anton van Leeuwenhoek was a scientist known for observing pond water and teeth scrapings under a microscope, contributing to the discovery of microorganisms.

Front

What distinguishes bacteria from viruses?

Back

Bacteria are living organisms made of cells that can reproduce independently, while viruses are non-living and require a host cell to replicate.

Front

What is the main reason rocks are not considered living?

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Rocks are not considered living because they are not made of cells.

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What did Robert Hooke contribute to science?

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

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What is the role of cells in living organisms?

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Cells are the basic building blocks of all living organisms, performing essential functions necessary for life.

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What is a key characteristic of all living things?

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All living things are made of cells.

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What did Theodor Schwann contribute to the Cell Theory?

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Theodor Schwann proposed that all animals are made of cells, contributing to the development of the Cell Theory.

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What is the significance of Rudolf Virchow's statement 'Omnis cellula e cellula'?

Back

Rudolf Virchow's statement means 'all cells come from cells,' emphasizing that new cells arise from existing cells.