Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Name _____________________________________ Period_____________ Section 2: The Discovery of Cells (p. 61) 1. Why were cells discovered by accident? _____________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ Seeing the First Cells 2. What did Robert Hooke see when he looked at a thin slice of cork with his microscope? ____________________________________________________ ______________________________________________________________ ______________________________________________________________ 3. Cell means __________________________ in Latin. 4. Did Hooke think that cells were found in all organisms? Explain. ____________ ______________________________________________________________ ______________________________________________________________ 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? ______________ ______________________________________________________________ ______________________________________________________________ 7. The basic unit of _________________________ in all living things is the cell. 8. Rudolf Virchow realized that all cells come from ___________________ cells. 1 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! ___________________________________ ______________________________________________________________ ______________________________________________________________ 14. In addition to being able to grow larger, what is another benefit of being multicellular? ___________________________________________________ ______________________________________________________________ ______________________________________________________________ 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. ______________________________________________________________ 16. Prokaryotic cells contain membrane-covered organelles that make proteins. ______________________________________________________________ ______________________________________________________________ 17. Cell walls surround all eukaryotic cells. ______________________________________________________________ 2 Chapter Work Chapter 3 Section 2 Name _____________________________________ Period_____________ 18. A eukaryotic cell has DNA inside its ribosomes. ______________________________________________________________ 19. Prokaryotic cells are also called algae. ______________________________________________________________ 3 Chapter Work Chapter 3 Section 2