Cell Wall Structure, Functions And Composition | Class 11 Biology скачать в хорошем качестве

Cell Wall Structure, Functions And Composition | Class 11 Biology

Hi Everyone! Welcome To My Channel "Ali Academy Biology Lectures" About This Video ........................ In This Video Lecture You Will Learn Basic Concept Of Cell Wall The outer most boundary in most of the plant cells is cell wall. The cell wall of plant cell is different from between the primary walls of the neighbouring cells. The primary wall is composed of cellulose primary wall, secondary wall and the middle lamella. The middle lamella is irst to be formed in that of prokaryotes, both in structure and chemical composition. It is secreted by the protoplasm and some deposition of pectin and hemicelluloses. Cellulose molecules are arranged in a criss of the cell. Its thickness varies in different cells of the plant. It is composed of three main layers: composed of inorganic salts, silica, waxes, cutin lignin etc. Prokaryotic cell wall lacks cellulose; its cross arrangement. The primary wall is a true wall and develops in newly growing cells. The secondary wall is formed on its inner surface and is comparatively thick and rigid. Chemically it is strengthening material is peptidoglycan or murein. Fungal cell wall contains chitin. Cell wall is very important. It provides a definite shape to the cell and keeps it rigid. It does not act as a barrier to the materials passing through it. About This Channel..................... I make these videos cause I love to draw and connect the complexity of science and medicine into art. I'm not saying. I'm 100% correct in all my videos, but I do try to obtain the information from credible sources. One-stop destination for all biology lectures. _ students in class 11, 12 or appearing for competitive medical exams ( NMDCAT ) will find it very beneficial _ The videos are categories under various heading to make the students life simplified Visit My Other Channel Playlist ..................... NMDCAT PART 1:    • New 1st Year Biology   NMDCAT PART 2:    • New 2nd Year Biology   Class 11th Lectures:    • New 1st Year Biology   Class 12th Lectures:    • New 2nd Year Biology   Class 10th Lectures:    • Matric Biology   Subscribe My Channel:    / aliacademya7r   Social Link........................ Instagram: https://instagram.com/ranaalibiologis... TWINS