unit 3 biology

12345678910111213141516171819
Across
  1. 2. a thick internal wall that encloses the DNA and portion of the cytoplasm
  2. 4. the protein coat surrounding a virus
  3. 5. bacteriophage DNA that becomes embedded in the bacterial host's DNA
  4. 6. such as penicillin and tetraqycline, that blocks the growth and reproduction of bacteria. It distrupts proteins or cell processes that are specific to bacterial cells
  5. 9. a preparation of weakened or killed pathogens or inactivated toxins
  6. 10. disease causing agents
  7. 12. HIV belongs to a group of RNA virus that are called retroviruses
  8. 13. rod-shaped prokaryotes
  9. 15. some bacterial viruses, including the bacteriophage lambda. In which a host cell is not immediately taken over.
  10. 17. a hallow bridge forms between two bacterial cells, and genetic material, usually in the form of a plasmid, moves from one cell to the other
  11. 18. clumps of tiny protein particles in the brains of infected sheep
  12. 19. an unknown disease that suddenly becomes harder to control
Down
  1. 1. spherical prokaryotes
  2. 3. virus that infect bacteria
  3. 7. when a prokaryote has grown so that's grown so that it has nearly doubled in size, it replicates its DNA and divides in half, producing two identicle cells
  4. 8. spiral and corkscrew- shaped prokaryotes
  5. 11. a virus enters a bacterial cell, makes copies of itself, and causes the cell to burst of lyse (lys)
  6. 14. is a non living particle made of proteins, nucleic acids, and sometimes lipids
  7. 16. the smallest and most abundant of these microorganisms