Biology Unit Exam

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Across
  1. 2. What is the watery environment that the DNA and ribosomes float within?
  2. 3. Where are the first cells Prokaryotic or Eubacteria?
  3. 5. What bacteria is associated with food poisoning?
  4. 9. Where do Archaebacteria live?
  5. 12. What are the oldest life forms on earth?
  6. 14. Who discovered cells in 1665?
  7. 15. what is the molecule that is present in the majority of living organisms and viruses.
  8. 16. How many years ago did the first cells appear? Hint: ___ Billion Years ago
  9. 17. True or False: The human body has more than 700 Trillion cells?
  10. 19. What are the functions of the ribosomes?
  11. 21. What Latin word does "cell" come from?
  12. 22. True or False: Cells are the fundamental unit of life?
Down
  1. 1. What are the functions of the ribosomes?
  2. 4. What part of the bacterial cell helps it move?
  3. 6. Streptococcus looks like this. Hint: line
  4. 7. What two kingdoms do bacteria belong in?
  5. 8. What does "decompose" mean?
  6. 10. What bacteria causes strep throat?
  7. 11. What part of the bacterial cell helps it stick to the surface?
  8. 13. Name two foods that are made from the help of bacteria?
  9. 18. What is the job of the cell's membrane?
  10. 20. What structure controls the cell's activities?