1. 10-2 Assessment Essential Question: How do cells make more cells?

2. HW: Due Monday!

3. 1. Name the main events of the cell cycle. A cell grows, prepares for division, then divides to form two daughter cells.

4. 2. Describe what happens during each of the 4 phases of mitosis. Prophase – DNA condenses to form chromosomes, nuclear membrane breaks down, spindles form. Metaphase – Chromosomes line up across center of cell. Each chromosome connected to spindle at center point (centromere) Anaphase – Spindles pull chromosomes apart toward opposite ends of cell. Telophase – Chromosomes gather at opposite ends of cell, new nuclear membrane forms around each group.

5. 3. Describe what happens during interphase. Cell grows and makes new organelles, copies DNA, and makes structures needed for mitosis.

6. 4. What are chromosomes made of? DNA and proteins

7. 5. How do prokaryotic cells divide? Division in prokaryotic cells less complicated than in eukaryotic. Just replicates DNA, then separates contents of cell into two parts.

8. 6. How is cytokinesis in plant cells similar to cytokinesis in animal cells? How is it different? Cytokinesis is division of cytoplasm in both kinds of cells. In plant cells, a cell plate forms between the two cells (later becomes cell wall).

9. Questions?

10. Mitosis in Motion http://www.youtube.com/watch?v=AhgRhXl7w_g