1. The diagram below represents the .
cell cycle I D C A G B E F H

2. The cell cycle has main parts.2 I D C A G B E F H

3. What is the longer part of the cell cycle called?
Interphase I D C A G B E F H

4. What is the shorter part of the cell cycle called?
M phase I D C A G B E F H

5. What is the first part of interphase called?G1 I D C A G B E F H

6. What is the last part of interphase called?G2 I D C A G B E F H

7. What is the longest part of interphase called?
S phase I
Replication
#27 in SG D C A G B E F H

8. Which event marks the beginning of the M phase?
Chromosomes
form I D C A G B E F H

9. Which event marks the beginning of interphase?
DNA loosens I D C A G B E F H

10. During M phase, the cell . divides INTERPHASE M PHASE GROWTH
DNA LOOSENS
CYTOPLASM DIVIDES
INTERPHASE
M PHASE
NUCLEUS DIVIDES
DNA REPLICATION
CHROMOSOMES FORM

11. First the divides, followed by the . nucleus cytoplasm
GROWTH
DNA LOOSENS
CYTOPLASM DIVIDES
INTERPHASE
M PHASE
NUCLEUS DIVIDES
DNA REPLICATION
CHROMOSOMES FORM

12. During interphase, the cell for division. prepares
GROWTH
DNA LOOSENS
CYTOPLASM DIVIDES
INTERPHASE
M PHASE
NUCLEUS DIVIDES
DNA REPLICATION
CHROMOSOMES FORM

13. Interphase is than M phase... longer
GROWTH
DNA LOOSENS
CYTOPLASM DIVIDES
INTERPHASE
M PHASE
NUCLEUS DIVIDES
DNA REPLICATION
CHROMOSOMES FORM

14. …because occurs during interphase.
DNA replication

15. Interphase is divided into parts. 3
GROWTH
DNA LOOSENS G1
CYTOPLASM DIVIDES
INTERPHASE
M PHASE
NUCLEUS DIVIDES S
DNA REPLICATION G2
CHROMOSOMES FORM

16. During , the cell made during . G2 checks for errors replication
DNA MOLECULE
REPLICATED DNA

17. During , the cell and G1
grows
makes
new
organelles

18. During phase, the DNA is by .
replicated
enzymes

19. IDENTIFYING CELLS

20. Cell B is in
M phase A C B D

21. M phase cells have
fully
formed
chromosomes A C B D

22. Cells A, C, and D are in
interphase A C B D

23. Interphase cells have no
chromosomes A C B D

24. Cell D is in phase, because it is .
fully
grown A C B D

25. Cells C are in , because they are ( .)G1
small
just divided A C B D

26. Cell A is at the of G2, because the DNA is to .
end
starting
condense
SPOTTED NUCLEUS A C B D

27. Interphase or M phase?
Interphase
Defense:
No chromosomes

28. Part of Interphase:
S phase
Defense:
Fully grown

29. Interphase or M phase?
Interphase
Defense:
No chromosomes

30. Part of Interphase:
End of G2
Defense:
DNA starting to condense
(SPOTTED NUCLEUS)

31. Interphase or M phase?
M phase
Defense:
Fully-formed chromosomes

32. Interphase or M phase?
Interphase
Defense:
No chromosomes

33. Part of Interphase: G1
Defense:
Small (just divided)

34. Why are most of these cells in interphase?
Interphase takes longer than M phase
Replication

35. List the cells in order according to the cell cycle, starting with the G1 cells.B, C, A A D B C