| 1. Why do Gram-positive bacteria appear purple after Gram staining? |
| 2. Why do Gram-negative bacteria appear reddish-pink after Gram staining? |
| 3. What do you know about the cell wall of Gram-positive bacteria? |
| 4. What do you know about the cell wall of Gram-negative bacteria? |
| 5. Is the bacterium E. coli Gram-positive or Gram-negative? |
| 6. What is the purpose of the washing steps during the Gram-staining procedure? |
| 7. Are Gram-stained bacteria dead or still alive? |
| 8. In the picture of yeast on page 7, label 1. refers to ___________ |
| 9. In the picture of yeast on page 7, label 2. refers to ___________ |
| 10. In the picture of yeast on page 7, label 3. refers to ___________ |
| 11. What are two major differences between prokaryotic and eukaryotic cell structures? |
| 12. What chemical associated with the cell wall gives Gram-positive bacteria their final color? |
| 13. In what ways are cyanobacteria like algae and land plants? |
| 14. In what ways are cyanobacteria different from algae and land plants? |
| 15. How can cyanobacteria, in contrast of saprotrophic bacteria, live in an environment that lacks organic nutrients? |
| 16. List one major type of obtaining organic nutrients and give an example of a protist with this type of nutrition. |
| 17. List one structure of locomotion found among protozoans and name an organism that uses this structure. |
| 18. List another structure of locomotion found among protozoans and name an organism that uses this structure. |
| 19. Name a protist that has both chloroplasts and flagella. |
| 20. Which structure makes the above protist algal like? |
| 21. Which structure makes the above protozoan like? |
| 22. How do slime molds obtain their nutrients? |
| 23. How do slime molds survive in conditions unfavorable to growth? |
| 24. Could an ecosystem that contains only protists remain in continued existence (i.e. sustainable)? |
| 25. Explain your answer for question 24. |
| 26. Both fungi and animals are heterotrophs but they are markedly different in how they acquire nutrients. Explain. |
| 27. List the name of one fungus that is made of single cells (unicellular). |
| 28. List the name of one fungus that is made of multiple cells (pluricellular). |
| 29. What is the functional purpose of spores in fungi? |
| 30. Are fungi autotroph organisms? |
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