Cell Theory Review

What are the parts of the cell theory? Check ALL that apply.

• All cells come from preexisting cells.

• All living things are composed of cells.

• Animal cells are more advanced than plant cells.

• Cells are the basic unit of life.

• Cells can only be seen with a microscope.

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What did Hooke coin in 1665?

• The term "cell"

• The term "organism"

• The term "microscope"

• The term "biology"

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Who improved the microscope in the 1670s to see single-celled organisms and red blood cells?

• Leeuwenhoek

• Hooke

• Schwann

• Virchow

What did Schwann and Schleiden do in 1839?

• Collaborated and compared animal and plant cells

• Coined the term "cell"

• Improved the microscope

• Stated that all cells come from other cells

What did Virchow state in 1885?

• All cells come from other cells

• Cells are the basic unit of life

• All living things are composed of cells

• Cells can only be seen with a microscope

Which characteristic does not apply to all cells?

• smallest structural unit of an organism

• contains a nucleus

• comes from other cells

• has cytoplasm enclosed by a membrane

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How do you determine whether something is living or nonliving?

• Living things have cells; nonliving things do not.

• Living things are larger than nonliving things.

• Living things are always moving.

• Living things are always visible.

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Why would knowing the cell theory be helpful in discovering life on other planets?

• To determine if things on other planets are living or were once living.

• To measure the size of planets.

• To calculate the distance between planets.

• To identify the temperature of planets.

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Label the timeline with the scientists.

a

b

c

d

Virchow

Schwann & Schleiden

Hooke

Leeuwenhoek

Match the Scientists with their contribution to the cell theory

• stated that all cells come from pre-existing cells

• Hooke

• coined the term “cell”

• Leeuwenhoek

• proposed that all plants and animals are made of cells

• Virchow

• saw single-celled organisms

• Schwann & Schleiden