Chapter 7-1 Life Is Cellular.....................
Name____________________________
Instructions: Read pages 190-194 of your textbook and answer the following questions.
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. Transmission electron microscopes can be used to explore cell ______________________ and large
_________________molecules
7. Scanning electron microscopes produce [ 2D | 3D | 4D ] images of the cell. (circle)
8. Specimens viewed under electron microscopes must first be [ preserved | stained ]. (circle)
9. 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
10. What type of microscope is needed to observe a cold virus? ______________________________________
11. What two things do ALL cells have? __________________________________________________________
12. Define nucleus: __________________________________________________________________________
13. Cells are categorized depending on whether or not they have a ___________________________________
14. The greek word "eu" means __________________ whereas "pro" means ___________________________
15. Prokaryote cells have ____________________material that is not contained in a _____________________
16. What type of organisms are prokaryotes? _____________________________________________________
17. Prokaryotes grow, reproduce and ___________________________________________________________
18. What four organisms are classified as eukaryotes? ______________________________________________
19. Eukaryotic cells are [ smaller | larger ] than prokaryotes.
7- 2 Eukaryotic Cell Structure……..
Name ____________________________
Instructions: Read pages 196-202 of your textbook and answer the following questions.
1. In some respects, the _________________________________ is like a factory.
2. These structures are known as "little organs." _____________________________.
3. See Figure 7-7. What part of the nucleus (with pointer) contains a small, dense region?
______________________________________________
4. The nucleus is surrounded by a _____________________________________ composed of two membranes.
5. When a cell divides, however; ______________________ condenses to form ________________________.
6. One function of __________________________ is the digestion, or breakdown, of lipids, carbohydrates, and
proteins into ________________________________ that can be used by the rest of the cell.
7. What kind of vacuole does the paramecium in Figure 7-8 contain? __________________________________
8. ___________________________ assembly and disassembly is responsible for the cytoplasmic movements
that allow cells, such amoebas, to crawl along surfaces.
9. What plays a critical role in maintaining a cell's shape? ________________________
10. _______________________ are located near the nucleus and help to organize cell division.
____________________ are not found in plant cells.
11. _________________________ are small particles of RNA and protein found throughout the cytoplasm.
12. The portion of the ___________________ involved in the synthesis of proteins is called ________________
_______________________________________________ or ________________________________________.
13. See Figure 7-11. What does the Golgi apparatus do to proteins?
__________________________________________________________________________________________
14. The Golgi apparatus is somewhat like a ________________________________________________, where
the finishing touches are put on proteins before they are ready to leave the "factory."
15. Most cells get energy in one of two ways ---- from ________________________ or from the ___________.
16. ___________________________ are organelles that convert the chemical energy stored in food into
compounds that are more convenient for the cell to use.
17. ______________________________ are the biological equivalents of solar power plants.
18. Unlike other organelles that contain no DNA, ____________________________ and
___________________________ contain their own genetic information in the form of small DNA molecules.