17. A Stem Cell Story – Video Questions 1. Life begins with how many cells? 2. How many new blood cells are made daily? Where do these blood cells come from? 3. How many different types of specialized cells can one blood stem cell (hematopoietic stem cell) make? 4. What is a stem cell? 5. Where can scientists obtain stem cells? 6. How many types of cells can adult/tissue stem cells make? 7. What type of stem cell can become any type of cell and form any tissue? 8. Where does the Embryonic stem cell come from?

18. A Stem Cell Story – Video Questions Cont’d 9. Neural stem cells from the brain can differentiate into which types of cell? 10. What are the roles of stem cells in our bodies? 11. What medical advantages come from using stem cells? 12. What are cells ‘fed’ when they are grown in a lab? 13. What is the major obstacle in beta cell transplantation in diabetes? 14. What are scientists trying to do to overcome the shortage of beta cells? 15. What are stem cell scientists investigating today? 16. To the narrator, to understand what is to understand the most important thing about life?

19. Extra Questions 17. What is a multipotent stem cell? Which stem cell exhibits this? 18. What is a totipotent/pluripotent stem cell? Which stem cell exhibits this? 19. Why is using Embryonic Stem Cells controversial?