chap #3 new book cell and sub cellular organelles In this lecture you will learn about cell wall composition structure layers of cell wal (primary wall, middle lemellae and secoundary wall) there is detail explaination about plasmodesmata last but not least functions of cell wall Like,share and subscribe for more clear and concise biology explaination. #cellWall #plantCell # biologyclass11 #class11biologychp3 #cellbiology #cell and sub cellular organelles #biologylectures