Unit 1 - Topic 5 - Protein control of cell division - Section A - The cytoskeleton and cell division Flashcards
1
Q
What does the cytoskeleton do
A
Gives mechanical support and shape to cells
2
Q
What is the cytoskeleton made up of
A
Different protein structures including microtubules, which are found in all eukaryotic cells
3
Q
What are microtubules
A
Microtubules are hollow cylinders composed of the protein tubulin. They radiate from the microtubule organising centre (MTOC) or centrosome.
4
Q
What do microtubules control
A
The movement of membrane-bound organelles and chromosomes
5
Q
What does cell division require
A
The remodelling of the cytoskeleton
6
Q
What does the formation and breakdown of microtubules involve
A
Polymerisation and depolymerisation of tubulin
7
Q
What do microtubules form that are active during cell division
A
Spindle fibres
