1.5a The Cytoskeleton and Cell Division Flashcards
1
Q
What is the function of the cytoskeleton?
A
Gives mechanical support and shape to cells
2
Q
What is the structure of the cytoskeleton?
A
It consists of different protein structures including microtubules, which are found in all eukaryotic cells.
3
Q
What is the structure of microtubules?
A
- hollow cylinders composed of the protein tubulin.
- They radiate from the microtubule organising center (MTOC) or centrosome
4
Q
What is the function of microubules?
A
They control the movement of membrane-bound organelles and chromosomes
5
Q
What does cell division require?
A
remodeling of the cytoskeleton
6
Q
What does formation and breakdown of microtubules involve?
A
polymerisation and depolymerisation of tubulin
7
Q
What is the role of microtubules in cell division
A
They form the spindle fibers that are active during cell division
