Shreya modi (1)
-
Upload
shreya-modi -
Category
Documents
-
view
165 -
download
3
Transcript of Shreya modi (1)
![Page 1: Shreya modi (1)](https://reader036.fdocuments.in/reader036/viewer/2022082607/559314f41a28abe05f8b45ab/html5/thumbnails/1.jpg)
cytoskeleton
Shreya M. ModiMSc –I[Microbiology]
H.N.G.UDept. of Life Science
![Page 2: Shreya modi (1)](https://reader036.fdocuments.in/reader036/viewer/2022082607/559314f41a28abe05f8b45ab/html5/thumbnails/2.jpg)
INDEX
Introduction Types of cytoskeleton (i) Intermediate filament (ii) Microtubules (iii) Microfilaments Comparision Conclusion References
![Page 3: Shreya modi (1)](https://reader036.fdocuments.in/reader036/viewer/2022082607/559314f41a28abe05f8b45ab/html5/thumbnails/3.jpg)
Introduction
• The cytoskeleton is a network of fibers extending throughout the cytoplasm.
The cytoskeleton organizes the structures and activities of the cell.
Cells need a (cyto)skeleton to:•create shape•change shape•allow movement
![Page 4: Shreya modi (1)](https://reader036.fdocuments.in/reader036/viewer/2022082607/559314f41a28abe05f8b45ab/html5/thumbnails/4.jpg)
Types of Cytoskeleton
![Page 5: Shreya modi (1)](https://reader036.fdocuments.in/reader036/viewer/2022082607/559314f41a28abe05f8b45ab/html5/thumbnails/5.jpg)
Composition of the cytoskeleton
• actin filaments (6-10 nm)• microtubules (25 nm) & associated proteins• intermediate filaments (11 nm) & molecular
motors • nano filaments (2-6 nm)
![Page 6: Shreya modi (1)](https://reader036.fdocuments.in/reader036/viewer/2022082607/559314f41a28abe05f8b45ab/html5/thumbnails/6.jpg)
Motility and trafficking
actin filaments myosins
microtubules kinesinsdyneins
![Page 7: Shreya modi (1)](https://reader036.fdocuments.in/reader036/viewer/2022082607/559314f41a28abe05f8b45ab/html5/thumbnails/7.jpg)
Intermediate Filaments
![Page 8: Shreya modi (1)](https://reader036.fdocuments.in/reader036/viewer/2022082607/559314f41a28abe05f8b45ab/html5/thumbnails/8.jpg)
Molecular motors
Microtubules Actin filaments Microtubules
nano filaments
?
?intermediatefilaments
![Page 9: Shreya modi (1)](https://reader036.fdocuments.in/reader036/viewer/2022082607/559314f41a28abe05f8b45ab/html5/thumbnails/9.jpg)
![Page 10: Shreya modi (1)](https://reader036.fdocuments.in/reader036/viewer/2022082607/559314f41a28abe05f8b45ab/html5/thumbnails/10.jpg)
Function of cytoskeleton
• stabilization• intracellular transport• signal transduction