6.13A - Cell Theory

What is one difference between prokaryotic and eukaryotic cells?

Answer in a complete sentence.

30 sec audio

Which statements are part of cell theory?

• All living things are made of cells

• Cells are the smallest unit of life

• All cells come from pre-existing cells

A. What invention helped scientists discover cells?
B. How does this invention still help us today?

Match the Scientist with their contribution

• Discovered that ALL plants have cells

• 
• All cells come from pre-existing cells

• 
• Discovered that ALL animals have cells

• 
• Discovered cells in a cork

• 

Who first observed cells in cork?

• Robert Hooke

• Anton van Leeuwenhoek

• Virchow

• Schwann

What statement is NOT part of cell theory?

• All living things are made of cells.

• All living things have the same number of cells.

• Cells come from pre-existing cells.

• Cells are the basic unit of life.

Match the following.

• One-celled organisms

• Photosynthetic

• Many-celled organism

• Multicellular

• Has nucleus

• Unicellular

• Organisms that can produce their own food using sunlight

• Prokaryotic

• No nucleus

• Eukaryotic

Put these discoveries in chronological order:

• Vrichow confirms cell division

• Hooke observes cells

• Schleiden studies plants

• Schwann studies plants

What happens when cells divide?

• A new species forms

• The organism dies

• New cells replace old cells

• Cells lose their function

A (unicellular / multicellular / eukaryotic) organism can perform all life functions in one cell.

(a)