Smooth endoplasmic reticulum

[prokaryotics]

Hey just been pondering over this question for a while some help would be greatly appreciated.

"Under what circumstances would you expect a cell to increase the amount
of its smooth endoplasmic reticulum?"

So my ideas
= Increase in presence of drugs/poisons as the Smooth ER has the function of detoxifying drugs and poisons, a cell such as a liver cell will thus require a lot more Smooth ER in these types of conditions (to prevent damage)

cant think iof much more

thanks alot

[JackBean]

yeah, that seems reasonable.

What about need for more lipids in fast growing cells?

[prokaryotics]

Ah sounds good, um Smooth ER also stores Ca+ ions, could we relate something to muscular action?

And any tips on the structuring of my answer cheers

[jwalin]

if its used as Ca2+ store (i aint sure of that) then it can be used in muscle cells, Beta cells of islets of langerhaans and at pre synaptic knobs.

[MrMistery]

i don't think fast growing cells have an enlarged smooth ER..
Though hepatocytes and myocytes are good examples