Cell Theory

Open Ended

Why do you think cells are considered the basic units of life?

Multiple Choice

Which of the following is a key difference between prokaryotic and eukaryotic cells?

• Prokaryotic cells have a nucleus, eukaryotic cells do not.

• Eukaryotic cells have a nucleus, prokaryotic cells do not.

• Both have a nucleus.

• Neither have cytoplasm.

Multiple Choice

What important role did Anton van Leeuwenhoek play in the history of cell theory?

• He invented the first compound microscope.

• He was the first to observe and describe bacteria and protozoa.

• He discovered the nucleus of the cell.

• He concluded that all animal tissues are composed of cells.

Multiple Choice

This scientist worked with animals and determined that all animals are made of cells.

• Mathias Schleiden

• Theodor Schwann

• Anton van Leeuwenhoek

Multiple Choice

This scientist worked with plants and determined that all plants are made of cells.

• Mathias Schleiden

• Theodor Schwann

• Robert Hooke

If all living things are made of cells & cells are the building blocks of life, where do the cells come from?

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​Still one piece of the puzzle was missing...

Open Ended

Explain the significance of the concept of 'spontaneous generation' in the context of cell theory and how it was eventually disproved.

Multiple Choice

Which scientist proposed that all cells result from the division of previously existing living cells, basically saying that cells come from other cells?

• Rudolph Virchow

• Robert Hooke

• Theodor Schwann

• Matthias Schleiden

Multiple Select

Which of the following scientists contributed to the development of cell theory? Select all that apply.

• Hooke

• Leeuwenhoek

• Schleiden

• Virchow

• Schwann

Open Ended

Summarize the three main points of the cell theory.