Question

How does centrioles move to the 'poles' in cells during prophase ? Are they carried around by proteins?

Answer 1

with help of microtubules which always present in between the pair of centrioles after replication and when nuclear membrane starts dissapearin microtubule started stretching through they wents in opposite pole

Answer 2

Its been a long time since I did any cellular lessons (15 years), but iirc they move along the cytoskeleton which will be powered by various protein complexes

Answer 3

So, they are ferried around by proteins? How does both centrioles coordinate their movements so that they are at opposite sites of the poles?

Answer 4

They hate each other so like to be far apart :) Seriously though, Im not sure...been far too long and I hated intracellular structure.

Answer 5

no actually microtubules which is present in between both centriole get jointed as they are made of tubular protien and starts growin and as they elong they move in opp. poles

Answer 6

yeah micro tubules are made up of protein right ?

Answer 7

sorry tubulin protein

Answer 8

if you need some more specific information, there are molecular motors called astral motors (these are dynein) that "pull" the astal microtubules, which are attached to the chromosomes, apart.

Here is an animation of the motor pulling the microtubule: http://faculty.plattsburgh.edu/donald.slish/Astral.swf

Also, read the wiki page on microtubules, subsection "organization within cell cells" for what they have to say on the astral motors.
http://en.wikipedia.org/wiki/Microtubule

Answer 9

ah, so that's what they are called