Compartmentilisation Flashcards
What are the three ways that cell takes in materials?
- Phagocytosis
- Pinocytosis (for water)
- Endocytosis (for receptors and proteins)
Cytoskeleton
is a fibrous protein that is used as a pathway for secretory vesicles to trave along within the cell
3 components of cytoskeleton
- Microfilaments
- Microtubules
- Intermediate filaments
What are microtubules made of?
Tubulin, that’s why they have tube-like structures
Have a and B tubulin
What is the role of mitochondria in cytoskeletons?
It is used to power motor proteins (carrying the mitochondria) that is attached on the microtubules. This allows the mitochondria to move to specific parts of the cell as the motor proteins move along the microtubules
What is the intermediate filaments composed of and where is it in the cytoskeleton?
It is made of keratin that shapes into a rope and stacked like a lattice structure
It is placed between the actin and tubulin
What is the shape of microfilaments?
It is a double helix actin
What is the term use when mitochondria fuses?
Reticular network or reticulum
Functions of mitochondria
- ATO synthesis
- Steroidogenesis
- Apoptosis
What is the mitochondria-steroid interaction?
Mitochondria contains an enzyme that can remove the side chain in the cholesterol which becomes the precursor for steroid
How does apoptosis happen?
Mitochondria would receive stimuli for apoptosis and releases a signal for the cells to package itself to small portions.
How is the cells removed during apoptosis?
The immune system cleans up the leftovers of the cell from the tissue
How does motor proteins move along the microtubule?
First ATP powers the stroke, where the next part of the molecule, the other foot goes in front, the previous foot lifts up and moves in in front.
