Cytoskeleton Flashcards
1
Q
What are the functions of the cytoskeleton?
A
- Supports the cell
- Give the cell its shape
- Controls cell movement
- Holds organelle in place
2
Q
What is the structure of the cytoskeleton?
A
- Is a stability of fibres necessary for the shape and stability of the cell
3
Q
What is the structure of the cilia(and undulipolia)?
A
- 9 pairs of microbtubules arranged in a cylinder with a pair in the middle (9 + 2) arrangement).
- Each pair has its own tiny motor protein.
4
Q
What is the function of the cilia(and undulipolia)?
A
- turn in a corkscrew motion to waft mucus or propelling sperm
5
Q
What is the structure of centrioles?
A
- 9 triplets of microtubules arranged in a cylinder.
- A pair is known as a CENTROSOME
6
Q
What is the function of centrioles?
A
- produces spindle fibres during cell division
7
Q
What is the structure of the flagellae?
A
- a single actin fibres
8
Q
What is the function of the flagellae?
A
- moves in a whip-like fashion to propel bacteria.
9
Q
Where is the location of the micofilaments?
A
- forming a network around the inside of the cell.
10
Q
What is the structure of the micofilaments?
A
- contractile fibres formed from the protein actin
11
Q
What is the function of the micofilaments?
A
- cell movement
- cell contraction
- cell division
12
Q
What is the structure of the microtubules?
A
- hollow tubes made out of alpha and beta tubulin.
13
Q
Where is the microtubles located?
A
- concentrated outside of he cell
14
Q
What is the Function of the microtubules?
A
- provides shape of the cell
- cell movement
- cell division
15
Q
Where are the Intermediate fibres located?
A
- randomly scattered around the cell.
16
Q
What is the structure of the intermediate fibres?
A
- Long strands of protein made from actin.
17
Q
What is the function of the intermediate fibres?
A
- fibres give mechanical strength to the cells and help maintain integrity.
