Microfilaments Flashcards
1
Q
Structure
A
Fine strands formed of 2 chains of globular g actin coiling around each other forming filamentous f actin
2
Q
Diameter
A
5-7 nm
3
Q
Protein subunit
A
G actin
4
Q
Location in the cells
A
Beneath the cell membrane
In microvilli
5
Q
Lm
A
Cannot be seen except by immunofluorescent techniques
6
Q
Functions
A
Muscle contraction
Intracellular pathway for organelles and granules
Cell structure changes by exocytosis and endocytosis and amboeid movements
Core of microvilli for its structure, lengthening and shortening
Form cleavage furrow during cell division cause cytoplasm constriction
