1. Chapter 10-2
Cell Division

2. Think About It As We Go…
What do we call the chromosomes when they have replicated?
What is the structure that holds the replicated chromosomes together?
What is the longest phase of the cell cycle?
In what phase of the cell cycle does the cell do most of their growing?
What does the “S” stand for in the S-phase and what occurs during this phase?

3. Chromosomes Genetic Information DNA Proteins
Carry the cell’s ___________ __________________ from one generation to the next.
Made of _________ and __________________
Genetic
Information
DNA
Proteins

4. Chromosomes Each cell contains a __________________ of chromosomes
Humans – _______
Apes - 48
Flies - _______
Carrot – 18
Dog - 78
Specific Number 46 8

5. Chromosomes ________________ Chromatids Centromere
One of two identical “sister” parts of a duplicated chromosome
Area where the chromatids of a chromosome are attached
Chromatids
Centromere

6. The Cell Cycle grows prepares for division daughter
During the cell cycle, a cell ___________, ________________ ________________, & divides to form 2 ____________ cells. Then, each new cell begins the cycle over.
grows
prepares for
division
daughter

7. The Cell Cycle Interphase ________________
Period of the cell cycle between cell divisions

8. Events of the Cell CycleG1
_____ Phase
Cell _____________
DNA replication
Preparation for mitosis
Cell division
__________________
Growth S G2 M
Mitosis &
Cytokinesis

9. Mitosis Mitosis: _________ of the _____________ division Has 4 Phases
_________________
division
cell nucleus P M A T
Prophase
Metaphase
Anaphase
Telophase

10. Mitosis PMAT _________________ Prophase First Longest visible
_______________ phase of PMAT
Chromosomes become ____________
__________________________ dissolves
___________________ separate
___________________ begin to form
Prophase
First
Longest
visible
Nuclear Envelope
Centrioles
Spindles

11. Mitosis PMAT

12. Mitosis PMAT _________________ Metaphase Chromosomes Spindle Fiber
___________________ line up across the center of the cell
Each chromosome is connected to a ______________________
Metaphase
Chromosomes
Spindle Fiber

13. Mitosis PMAT

14. Mitosis PMAT _________________ Anaphase Sister Chromatids opposite
___________________________ separate into individual chromosomes
Chromosomes move toward ____________ poles
Anaphase
Sister Chromatids
opposite

15. Mitosis PMAT

16. Mitosis PMAT _________________ Telophase poles nuclear envelopes
Chromosomes gather at the ________ and lose their shape
New _____________________________ surround each set of chromosomes
Telophase
poles
nuclear envelopes

17. Mitosis PMAT

18. Mitosis Post-PMAT

19. Mitosis Post-PMAT ________________ Cytokinesis
Division of the __________________
Each daughter cell is left with a set of chromosomes _________________ to those of the ______________________ that divided.
Cytokinesis
cytoplasm
identical
original cell

20. Chapter Homework Vocab will be on Friday’s Quiz!
Section Assessment Due Friday.
Workbook pages (handout) due Friday.
**1 Point of Extra Credit will be given on any assignment turned in before Friday.