Download 10.Life is cellular

.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
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2. Who was the first person to see cells? ______________________________
3. Why did he call them cells?
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4. Who was the first person to see tiny organisms living in water?
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5. List the three components of the CELL THEORY
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6. High resolution video technology can be used to produce moves of cells as they
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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?
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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?
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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?
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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.