BIO 3153 Lecture Notes - Lecture 9: Ptk2, Lipid Bilayer, Cell Adhesion
Document Summary
Undergoes a very specific cascade of events. We determined total cell mass by the growth of cells the death of cells. Difference between a necrotic cell and a cell undergoing apoptosis, necrosis is due to a pathological reason, apoptosis is planned. Necrosis is also trauma or cytotoxicity leading to decreased atp and decreased na+/k+-atpase activity, followed by lysis. Because this can cause problems on a large scale. It could disrupt a lot of the communication going on within an organism, in part due to them causing extracellular signaling to other cells around it. Similar to destroying a building, it"s done neatly, not just randomly. Balance of cell division with death in adult tissues. For example, when during development, there needs to be more definiteion on something, such as a finger. There"s two very defined pathways, with very specific events, required for the cell to go through apoptosis. These can be initiated by intracellular or extracellular signals.
