Cell Theory and Microscopes

In 1670, this person used an improved microscope to observe bacteria and red blood cells.

• Leeuwenhoek

• Flemming

• Pasteur

• Schwann

Who gave the name "cell"?

• Zacharias Janssen

• Schwann

• Schleiden

• Anton van Leeuwenhoek

• Robert Hooke

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All cells come from...

• previously existing cells

• matter

• spontaneous generation

• electrical impulses

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What did Theodore Schwann propose?

• all animals are made up of cells

• all plants are made up of cells

• swans are made up of cells

• cells come from other cells

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What did Schleiden do?

• gave the cell its name while looking at cork

• proposed that all plants are made of cells

• was the first to state that all animals are made of cells

• determined cells must come from existing cells

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Rudolf Virchow (1855) stated that...

• no new cells are ever formed

• all living cells are there at birth

• birth to death, you have the same number of cells

• all cells come from existing cells

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Schwann, Schleiden, and Virchow are credited with what?

• creating the first microscope

• seeing the first animals

• introducing cells to the scientific community

• developing the cell theory

Which of the following statements is not part of the cell theory?

• Cells are the basic unit of structure and function in all living things.
• All cells are produced from other cells.
• Only animal cells are composed of cells.
• All living things are composed of cells.

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According to cell theory, where did this cell come from?

• Another living cell
• Energy from sun
• A multicellular organism
• The nonliving environment

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Cells are often called "the ____ of life."

• bread
• road map
• building blocks
• meaning

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