1. Chapter 10

2. Large cells cannot transport nutrients across membrane
A group of smaller cells has a larger surface area than a single cell with the same volume...

3. Remember, cells must use diffusion and osmosis to obtain important nutrients, like oxygen and glucose

4. Cell Division - process by which a cell splits into two identical daughter cells
Two Types of Division:
Sexual Reproduction
Asexual Reproduction

5. Occurs in two main phase:
Interphase – cell copies DNA and prepares for division
Mitosis – chromosomes separate into two new cells

6. What are chromosomes? DNA containing cell’s genetic code
Each chromosome has a matching pair (homologous)
During interphase, each chromosome copies itself

7. Life Cycle of the Cell Mitosis = nuclear division
Mitosis is followed by cytokinesis (cell division)
The steps of mitosis ensure that each new cell has the exact same number of chromosomes as the original
Interphase = growth phase, differentiation occurs

8. The Cell Cycle Interphase (longest phase)
G1 - first growth (gap) phase
Synthesis - DNA makes a copy
G2 - second growth (gap) phase, preparing for mitosis
Mitosis - nucleus divides, ensuring each new cell has the exact number of chromosomes as parent

9. Interphase • Prophase • Metaphase • Anaphase • Telophase
IPMAT

10. 1. chromosomes visible (chromatids)
2. centrioles migrate to the poles
3. nuclear membrane disappears
4. nucleolus disappears
5. spindle forms

11. 1. chromosomes line up on the equator, spindle attaches

12. 1. chromatids separate and move to opposite poles

13. 1. chromosomes disappear • chromatin
2. nuclear membrane reforms
3. nucleoli reappears
4. spindle disappears
5. centrioles duplicate

14. - division of the cytoplasm to form 2 new daughter cells
- organelles are divided
- daughter cells are genetically identical
Cells return to interphase

21. Name the phases starting at the top.

22. Name the phase
Identify X
Identify Y

23. 5. Name the phase

24. 6. Name the phase