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Page 98

Page 98. 2 points for having a flow chart with a stamp. (no stamp = no points) Late stamp is OK. Page 99. ½ point for having each picture titled. ½ point for having each magnification written in. 1 point per drawing Deduct ½ point if it is not in color. Page 100-101.

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Page 98

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  1. Page 98 • 2 points for having a flow chart with a stamp. • (no stamp = no points) • Late stamp is OK

  2. Page 99 • ½ point for having each picture titled. • ½ point for having each magnification written in. • 1 point per drawing • Deduct ½ point if it is not in color

  3. Page 100-101 • 1. What observable characteristics can be used as evidence for classifying a specimen as a plant? In other words, what structures or features do you see that tell you the specimen you observed (elodea) was a plant? • Chloroplasts and/or cell wall (½ pt)

  4. 2. Are the chloroplasts you observed moving or stationary? • Stationary (½pt)

  5. 3. Inside the mouth, cheek cells are joined together in a sheet. Why are they scattered here? • These cells were swabbed and removed. (½pt)

  6. 4. How are the animal cells different from the plant cells you observed (list at least three differences)? • They contain no chloroplasts, they don’t have a cell wall, they needed to be stained, they were scattered, etc. (½pt)

  7. 5. What is the relationship between plant cell structure and the ability of plants to stand upright? • Plant cells contain cell walls and a large central vacuole that helps them stay rigid ( ½ point)

  8. 6. Cheek cells do not move on their own, so you will not find two organelles that function for cell movement. Name these organelles. • Cilia & flagella ( ½ pt)

  9. 7. Were the cells you observed eukaryotic or prokaryotic? How do you know? • Eukaryotic. They had a nucleus and were plant and animal cells. We were able to see them under the microscope ( ½ pt)

  10. 8. Is the nucleus always found in the center of the cell? • No. ( ½ pt)

  11. 9. Why are stains such as methylene blue used when observing certain cells under the microscope? • Some cells don’t have pigments or color and require a stain to highlight certain features. Staining helps differentiate between different parts of the cell (1 pt)

  12. 10. (1 pt)

  13. Cell Organelle Drawings • Pages 81, 83, 85 • Each page above is worth 2 points. • Subtract 1 point per page with no color • Subtract 1 point per page with no stamp.

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