Biology 1002B Lecture Notes - Lecture 17: Zygote, Gene Duplication, Dna-Binding Domain
16 Jan 2017
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Chlamy doesn(cid:495)t really have a life span, they are immortal continuously dividing (cid:498)executioner(cid:499) caspases are proteases that cleave essential proteins, leading to a. They could be eaten, starving (not enough nutrients) Environment changes, dramatically hot or cold, cant cope. Dna damage that is lethal controlled, but irreversible, biochemical cascade causing cell shrinkage, chromatin fragmentation and cell death. Cells have the ability to kill themselves by this controlled irreversible cascade once it begins, you cannot stop it, the cell is doomed. Caspases are proteases that cleave other proteins. Understand what every cells job is in this cell. The job of some cells it to die. From this, we can work out this pathway. Ced-3 is the protein that does the damage when it is inactive, the cell is. Right now, they are both inactivated, when ced-9 (from the mitochondria) living activates it, then the cascade can occur. Ced-9 released by the mitochondria, activates ced-4 which activates ced-3.
