Unit - 2 

Structure and functions of cell wall: bacterial cell wall – plant cell wall and fungal cell wall, plasma membrane – exocytosis, endocytosis, phagocytosis – vesicles and their importance in transport. Cytoskeleton structure – microtubules, microfilaments, intermediate filament. 

Video Lectures (Watch the video files with headphone for audio clarity and note the points in course journal (CJ), submit the same to course teacher & get signed) (to know what is CJ click HERE). To find the key points that should be there in CJ, click HERE

1. Introduction to cell wall - Lect-1; for an explanation in Tamil click HERE

2. Plant cell wall - Lect-2

• To learn more about cellulose click Lect 2B ; for an explanation in Tamil (watch after 4.30 -9.10 min) click HERE  

• To learn more about plant cell wall click HERE

3. Bacterial cell wall - Lect-3

• To learn more about Peptidoglycan click HERE; for an explanation in Tamil click HERE

4. Fungal cell wall - Lect-4

• To learn more about chitin click HERE

5. Cell membrane - Lect-5 - This lecture includes Fluid mosaic model, functions of membrane, three classes of membrane lipids, What are the forces keeping bilayer together?, Membrane fluidity, cholesterol role in membrane fluidity, membrane protein and their types.  

• For Plasma membrane explanation in (Tamil) click - Lect-I; Lect-II, Lect-III, Lect-IV

6. Models of Cell membrane functioning - Lect 6

7. Cell membrane and Pseudopodia formation - bulk transport mediated through vesicles - Lect 7

8. Endocytosis (including pinocytosis & phagocytosis) - Lect 8

• To learn more about endocytosis and exocytosis click HERE

9. Receptor mediated endocytosis & Exocytosis - Lect 9

• Receptor mediated endocytosis Part-1 & Part-2

10. Cytoplasm & its functions - Cyclosis - Lect10

• To listen to an explanation about cytoplasm (Tamil) click HERE

11. Cytoskeleton structure and function - Lect 11

• To know about the details of the functioning of cytoskeleton refer this Link