2.1.8 The Cytoskeleton Flashcards
1
Q
What are microfilaments?
A
- Solid strands
- Made from actin
- Cause cell movement and movement of organelles
2
Q
What are microtubules?
A
- Tubular hollow strands
- Made of tubulin
- Organelles move along these fibres using ATP to drive movement
3
Q
Function of cytoskeleton
A
- Strengthening and supporting cell
- Intracellular movement
- Cellular movement
4
Q
How does the cytoskeleton provide strength and support?
A
- Mechanical strength
- Via scaffolding maintaining shape of cell
- Supports organelles keeping them in position
5
Q
How does the cytoskeleton provide intracellular movement?
A
- Forms ‘tracks’ along which organelles can move
- Movement of vesicles
- Chromosomes to opposite ends in cell division
6
Q
How does the cytoskeleton provide cellular movement?
A
- Cilia and Flagella
- Hair like extensions containing microtubules responsible for moving them
