2.1 Cytoskeleton Flashcards
What are protein threads arranged as?
- microfilments
* microtubules
What are microfilments?
Small solid strands
What are microtubules?
Tiny protein cylinders
What are the functions of the cytoskeleton?
- support the cells organelles
- strengthens the cell and maintains its shape
- responsible for movement of materials inside the cell
- movement if the cell
Give an example of the movement inside the cell?
Movement of chromosomes when they separate during cell division
What is the cytoplasm made up of?
A network of protein threads called the cytoskeleton
Where are actin filaments found?
In muscle cells
What do actin filaments help to do?
- Move organelles in the cell
- cause movement in white blood cells
How big are microtubules?
25nm in diameter
What are microtubules made of?
A protein called tubulin
What do microtubules do?
- move microorganisms through liquid
- move liquid
- move organelles in cells
What do microtubules use to drive movement?
ATP
What is the cytoskeleton made up of?
Microfilments
Intermediate filaments
Microtubules
What is the cytoskeleton?
A complex network of fibres that resist tension to support and maintain the cells shape
What is the same about the elements that make up the cytoskeleton?
They are all dynamic
