death+by+design+movie-+rebecca

Programmed cell death (PCD) - cell suicide - cancer cells bypass PCD

cell- the ultimiate unit of life. -round -dont have walls -Leeuwenhook- was teh first to see cells using a mircoscope. -what do cells do? -they kill each other, they talk to each other, they regenerate each other. they do everything an animal can do. -the cells come together to form a community. -animal cells= look like bubbles. -cells send signals to each other to communicate.

How do cells talk to each other? - cancer cells dont listen to the signals.

If you put 1 cell into a dish it will kil itself. If has no other signals going to it. cells in humans= 10^13 cells in worms= 959

- we have fingers and toes because our cells died that were between them.