Download Name Period_____________ Section 2: The Discovery of Cells (p

Name _____________________________________ Period_____________
Section 2: The Discovery of Cells (p. 61)
1. Why were cells discovered by accident? _____________________________
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Seeing the First Cells
2. What did Robert Hooke see when he looked at a thin slice of cork with his
microscope? ____________________________________________________
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3. Cell means __________________________ in Latin.
4. Did Hooke think that cells were found in all organisms? Explain. ____________
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Seeing Cells in Other Life-Forms
5. Anton van Leeuwenhoek did NOT
a. see bacteria.
b. discover that frog and human blood cells are the same shape.
c. discover that yeasts are unicellular organisms.
d. see small organisms in pond scum.
The Cell Theory
6. When did scientists realize that all organisms contain cells? ______________
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7. The basic unit of _________________________ in all living things is the cell.
8. Rudolf Virchow realized that all cells come from ___________________ cells.
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Chapter Work Chapter 3 Section 2
Name _____________________________________ Period_____________
Cell Similarities
Choose the cell feature in Column B that best matches the phrase in
Column A, and write the corresponding letter in the space provided.
Giant Amoeba Eats New York City
13. Could an amoeba become large enough to eat New York City? _____________
Why or why not? Describe in detail! ___________________________________
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14. In addition to being able to grow larger, what is another benefit of being
multicellular? ___________________________________________________
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Two Types of Cells
Each of the following statements is false. Make the statement true. Write the
new statement in the space provided.
15. Eukaryotic cells have circular DNA.
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16. Prokaryotic cells contain membrane-covered organelles that make proteins.
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17. Cell walls surround all eukaryotic cells.
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Chapter Work Chapter 3 Section 2
Name _____________________________________ Period_____________
18. A eukaryotic cell has DNA inside its ribosomes.
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19. Prokaryotic cells are also called algae.
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Chapter Work Chapter 3 Section 2