1st quarter Quiz two-three.pptx general biology 1

biology

1. Quiz 2-3

2. The presence of which of the cell structures would tell him that the cell is eukaryotic? 1

3. The most abundant organisms on Earth are? 2

4. How many cells does one bacteria have? 3

5. What does the bacterial cell wall consist of 4

6. How does a bacteria reproduce 5

7. Gram positive bacteria are susceptible to antibiotics because they lack of? 6

8. E xtra layer of proteins/polysaccharides that some bacteria have outside of their cell wall (helps them stick to other cells) 7

9. E xtension from one cell that helps attach to another cell during conjugation 8

10. A thick coated protective structure produces within a bacterial cell exposed to harsh conditions 9

11. The union of two bacterial cells and the transfer of DNA between them 10

12. Proteins that plays a crucial role in initiating binary fission. 11

13. A process wherein septum is synthesized? 1 2

14. After the binary fission is completed the parent cell produced_________? 1 3

15. It is an obligate intracellular parasite that depends on its host’s cell for all aspects of its reproduction. 14

16. How do viruses reproduce? 15

17. What do viruses need to reproduce? 16

18. A(n) _____ is a virus that enters a bacterial cell. 17

19. Infectious disease that can be transmitted from animals to humans under natural conditions. 18

20. When a virus invades a living cell, its _______ takes over the cell's functions. 19

21. What part of a virus is the protein capsule that houses the genetic material (DNA/RNA)? 20

22. Which viral life cycle kills its host cell by lysing? 21

23. Which viral life cycle allows viral genetic material to lay dormant while the host cell reproduces? 22

24. The first discovery of a virus is in plant namely ? 23

25. why do some viruses seem to go away and then return later, like a cold sore? 24

26. Viruses are cells.  25