Death+By+Desigh


 * Notes**

Programed Cell Death (PCD): Cell suicide, Cancer Cells bypass PCD continue to divide and make a tumor Cell: Leeuvenhoek, cells look like squares with walls between them, Animal Cells are like soap bubbles They come togahter in communities to form animals and plants, and they can do anything that they can do. Community of cells Different roles in this community of cells, each has a different job to carry out on a day to day basis Multicellular communities car much later (during evolution) How do cells communicate to each other? Cancer cells don't listen to these signals Commands: more, grow, divide, or don't divide Put one cell in a dish it will kill its self The only reason cell lives is other cells are telling it too PCD "neat" death destroy evidence webbed feet- destroy this part, kill it  PCD of neurons (805) in developing fetus analogy: when making an animal you have to kill/destroy/remove the scaffolding humans= 10^15 cells work= 959 cells Why we make a cell if you are going to tell it to due? Probibly because that cell had a pu an ancestor but not now