______/ 44 1. 2. 3. 4. 5. 6. 7. 8. 9. Name Date Period Bacteria are: unicellular / multicellular. Bacterial cells are : eukaryotic/ prokaryotic. What does prokaryotic mean? _____________________________________ Bacterial cell have a: cell wall/ cell membrane / both. Pili are : long hair- like / short hair-like projections. True or false: All bacteria have a capsule or slime layer. Which is not a form of reproduction in bacteria? Conjugation / binary fission / budding Which is sexual reproduction in bacteria? Conjugation / binary fission / budding Why is conjugation in bacteria such a problem for human health? 10. (2)If a bacterium Gram stains positively, what color is that, and what does it mean? (Hint: peptidoglycan) 11. Why do we care which color bacteria Gram stains? 12. How do antibiotics work? 13. (2)What are two functions of pili? 14. (2) What are endospores and how long can they remain viable? 15. (3) What are three shapes of bacteria, Describe these shapes. 16. (3) Draw the following: A. diplospirilli, B. streptobacilli, C. staphylococci 17. What is a methanogen? 18. What can anaerobic bacteria not live in? 19. (5)What are five ways we can keep bacteria from growing in food? 20. (4) Name and describe four types of bacterial food poisoning. 21. (4) Name eight ways that bacteria can be helpful. 22. (2) Name two ways (besides decay) that bacteria can be harmful. 23. (3) Name and describe two types of extreme bacteria. In which kingdom are they classified?