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Name __________________________________________________________________________ Due Date __________________ Unit 2 WS I. Complete the table by placing a check mark under the appropriate column(s). Characteristic Prokaryotic Cells Eukaryotic Cells 1. Contain definite nucleus 2. Have internal membrane-bound structures 3. Reproduce 4. All are unicellular 5. Contain DNA 6. May become specialized 7. Respond to environment II. Cell Identification - Identify which cell (A, B, or C) is a plant cell, which is an animal cell, and which is a bacterial cell. A. ________________________________________ B. ________________________________________ C. ________________________________________ III. Structure Identification - Correctly identify and spell the indicated cell structures. No abbreviations! IV. Identify the described structure. Indicate which cell(s) contain that structure by making an X in the correct column(s). Cell Structure Function 1. Cell Gel 2. Selectively permeable structure; maintains homeostasis 3. Network in which proteins are modified, & transported 4. Directs cell’s activities, location of cell’s DNA 5. Produces proteins 6. Produces ATP from glucose, oxygen 7. Synthesizes lipids; detoxifies poisons, stores calcium 8. Fine strands of DNA wrapped in protein 9. Converts sun’s energy into useable energy 10. Stores water, food, wastes 11. Outermost boundary of some cells; provides structure 12. Clean-up & recycling crew; destroys pathogens 13. Cell Postmaster; Receives, modifies, ships biomolecules 14. Made up of microtubules and microfilaments 15. Double phospholipid bilayer; surrounds & protects DNA 16. Site of ribosome production 17. Play a role in cell division 18. Openings in nuclear envelope; allows for passage of RNA Found in Bacteria? Found in Plant Cells? V. Use the following diagram of the cell membrane to fill out the table below. A D B E C Letter of Structure 1. Name of Structure Description of Structure Non-polar, middle portion of cell membrane 2. Embedded in cell membrane, serve as channels & pumps 3. Polar portion of cell membrane oriented towards water 4. Provides stability for animal cell membrane 5. Serve as “id” tags for cell VI. Identify each statement as describing cell membrane, cell wall, or both. _______________________1. Firm structure that protects and gives shape to the cell. _______________________2. Flexible, allows the cell to change its shape _______________________3. Found in plants, bacteria, & fungi _______________________4. Helps maintain a chemical balance within the cell _______________________5. Composed predominantly of polysaccharides Found in Animal Cells?