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.Name____________________________ Date_______ Class__________ Use your book (chapter 7 to answer the following questions) *You may work in pairs (NO MORE THAN 2 TO A GROUP!!!) Chapter 7-1 Life Is Cellular 1. The discovery of the cell was possible due to the invention of the _______________________ 2. Who was the first person to see cells? ______________________________ 3. Why did he call them cells? _____________________________________________________ 4. Who was the first person to see tiny organisms living in water? _________________________________________________ 5. List the three components of the CELL THEORY _______________________________________________________________ _______________________________________________________________ ___________________________________________________________________________ 6. High resolution video technology can be used to produce moves of cells as they _________________________________________________________ 7. Transmission electron microscopes can be used to explore cell ______________________ and large _________________molecules 8. Scanning electron microscopes produce [ 2D | 3D | 4D ] images of the cell. (circle) 9. Specimens viewed under electron microscopes must first be [ preserved | stained ]. (circle) 10. Using the timeline, place the following in order of their discovery, from the earliest to the latest ____ All plants are made of cells ____ Cells organelles may have once been free-living organisms ____ The first cells were seen and a book published with drawings ____ All animals are made of cells ____ Observation of organisms living in pond water ____ Cells can only come from other cells 11. What type of microscope is needed to observe single atoms? __________________________ 12. What two things do ALL cells have? ______________________________________________ 13. Define nucleus: ______________________________________________________________ 14. Cells are categorized depending on whether or not they have a ________________________ 15. The greek word "eu" means _____________ whereas "pro" means _____________________ 16. Prokaryote cells have _________________material that is not contained in a _____________ 17. What type of organisms are prokaryotes? _______________________________________ 18. Prokaryotes grow, reproduce and ______________________________________________ 19. What four organisms are classified as eukaryotes? __________________________________ 20. Eukaryotic cells are [ smaller | larger ] than prokaryotes. 7- 2 Eukaryotic Cell 1. In some respects, the _________________________________ is like a factory. 2. These structures are known as "little organs." _____________________________. 3. Cell biologists divide the eukaryotic cell into two major parts the ________________________ and the _____________________________________________. 4. See Figure 7-7. What part of the nucleus (with pointer) contains a small, dense region? ______________________________________________ 5. The nucleus is surrounded by a ____________________________ composed of two membranes. 6. When a cell divides, however; __________________ condenses to form __________________. 7. _________________________ are small particles of RNA and protein found throughout the cytoplasm. 8. The portion of the ___________________ involved in the synthesis of proteins is called ____________ ______________________________ or ___________________________________. 9. See Figure 7-9. What does the Golgi apparatus do to proteins? _______________________________________________________________ 10. The Golgi apparatus is somewhat like a ___________________________, where the finishing touches are put on proteins before they are ready to leave the "factory." 11. One function of __________________________ is the digestion, or breakdown, of lipids, carbohydrates, and proteins into ________________________________ that can be used by the rest of the cell. 12. What kind of vacuole does the paramecium in Figure 7-10 contain? ____________________________ 13. Most cells get energy in one of two ways ---- from ________________________ or from the ___________. 14. ___________________________ are organelles that convert the chemical energy stored in food into compounds that are more convenient for the cell to use. 15. ______________________________ are the biological equivalents of solar power plants. 16. Unlike other organelles that contain no DNA, ________________________ and ____________________ contain their own genetic information in the form of small DNA molecules. 17. Eukaryotic cells have a structure --- the _____________________________ --- that helps support the cell. 18. ___________________________ assembly and disassembly is responsible for the cytoplasmic movements that allow cells, such amoebas, to crawl along surfaces. 19. What plays a critical role in maintaining a cell's shape? ________________________ 20. _____________________ are located near the nucleus and help to organize cell division. _____________________ are not found in plant cells.