1. Warm-up # 2 1/8/2015 What is fertilization? Sperm & Egg (Gametes/ sex cells) fuse Create zygote Compare and contrast cell differentiation and cell division Mitosis  identical daughter cells Cell diff  only occur in stem cells

2. Review of Webquest 3. Why do fat cells give rise to more fat cells? Low potency  many inactive genes 7. Potency: The ability of a stem cell to differentiate into different cell types 13. What is a blastocyst? A distinctive stage of development that has two differentiated cell types

3. Stem Cell Article Pair share summary of article Create story board representing what the article was about

4. TED talk http://www.ted.com/talks/anthony_atala_gr owing_organs_engineering_tissue/transcript ?language=en#t-89340 http://www.ted.com/talks/anthony_atala_gr owing_organs_engineering_tissue/transcript ?language=en#t-89340 Explain why some cells, like liver, nerve, and pancreatic cells, are impossible to grow still today.

5. Homework Read 11.2 & take notes Bring in signed consent form