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Would agree with the previous answer but i'm supposed to be working so anything to procrastinate...

Right - nucleus - very very important and all cells except mature red blood cells have them. Contain all DNa information to encode pretty much any protein one might want to make.

ER - smooth and rough, this is where you'd make a protein using ribosomes. also massive internal store of calcium which can be released through receptor gated channels (or via leak channels, but this is much slower). SERCA pump will pump calcium back into ER

Golgi - this is where you might adapt proteins and ship them off to other places.

Mitochondria - powerhouse of cell - produces energy for cell, can release pro-apoptotic proteins to initiate cell death. Will also produce oxidants which can be used in signalling (this is a novel role of oxidants, been around about a decade). Generally this oxidants are thought to be bad and major causative agent of ageing.
Also, can take up calcium via a uniporter to aid intracellular calcium homeostasis (this also drives energy production). Calcium is then driven out of the mitochondria by the sodium-calcium exchanger (NCX) where calcium can then be taken back up into ER.

Lysosomes- death package. contain proteases which will break down intracellular proteins.

There's lots and lots more information around, but have to get back to work...

2007-12-03 02:27:59 · answer #1 · answered by eurostar 2 · 0 0

so much that your question needs to be more specific

2007-11-30 13:28:22 · answer #2 · answered by gerafalop 7 · 0 0

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