BIo question

[20090900]

For the purposes of the DAT, what is responsible for the formation of the cleavage furrow in animal cells and the cell/division plate in plant cells seen during cytokinesis. Aka I don't know whether it's microtubules, microfilaments, or both.

Thanks 🙂

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[NDPitch]

I'm pretty sure the cleavage furrow is from actin filaments. In plant cells, I know the cell plate where division occurs is formed from the golgi - but I'm just not sure if there are any filaments involved in the division itself. Someone back me up?

 

[BRZ24]

I'm pretty sure the cleavage furrow is from actin filaments. In plant cells, I know the cell plate where division occurs is formed from the golgi - but I'm just not sure if there are any filaments involved in the division itself. Someone back me up?

Yeah I have never heard of any book or teachers mentioning a structure that does the process.

It is just something that is formed during cell division right after telophase.

Cell plate in plants (which later becomes the cell wall) and cleavage furrow in animal cells.

 

[aqz]

Thanks for bringing this up, almost forgot about it.

Cleavage furrow is formed from an actin-myosin contractile ring. It's predominantly actin, but myosin is in there.

Cell plate formation is derived from Golgi vesicles that contain cell membrane/cell wall stuff. Mainly, the cell plate is made up of callose (beta-1,3 polysaacharide) and then when cytokinesis is over, the cell plate turns into the new cell wall containing cellulose (beta-1,4 polysaacharide).

 

[BRZ24]

Thanks for bringing this up, almost forgot about it.

Cleavage furrow is formed from an actin-myosin contractile ring. It's predominantly actin, but myosin is in there.

Cell plate formation is derived from Golgi vesicles that contain cell membrane/cell wall stuff. Mainly, the cell plate is made up of callose (beta-1,3 polysaacharide) and then when cytokinesis is over, the cell plate turns into the new cell wall containing cellulose (beta-1,4 polysaacharide).

I really doubt the test is gonna go into that much detail (maybe for the cellulose)