上游充通大粤 Shanghai Jiao Tong University Cell Structure and Function Lecture 3-3: Microbial cell biology Zhao Liping,Chen Feng School of Life Science and Biotechnology Shanghai Jiao Tong University http://micro.sjtu.edu.cn
Lecture 3-3: Microbial cell biology Cell Structure and Function Zhao Liping, Chen Feng School of Life Science and Biotechnology Shanghai Jiao Tong University http://micro.sjtu.edu.cn
上充通大学 Shanghai Jiao Tong University 3.8 Cell Wall of Prokaryotes: Peptidoglycan and Related Molecules 原核生物细胞壁：肽聚糖与相关分子
3.8 Cell Wall of Prokaryotes: Peptidoglycan and Related Molecules 原核生物细胞壁: 肽聚糖与相关分子
Lysozyme Wall H2O enters Lysis digests wall Membrane H2O enters H2O enters Lysozyme digests wall Protoplast Protoplasts原生质体 (a)In dilute solution breakdown of the cell wall releases the protoplast,but it immediately lyses because the cytoplasmic membrane is very weak.稀溶液中原生质体会立即破裂
Protoplasts原生质体 (a) In dilute solution breakdown of the cell wall releases the protoplast, but it immediately lyses because the cytoplasmic membrane is very weak. 稀溶液中原生质体会立即破裂
Lysozyme Wall H2O enters Lysis digests wall Membrane H2O enters H2O enters Lysozyme digests wall Protoplast Protoplasts原生质体 (b)In a solution containing an isotonic concentration of a solute such as sucrose,water does not enter the protoplast and it remains stable.等渗溶液中，水不进入原生质体，原生质体稳定
Protoplasts原生质体 (b) In a solution containing an isotonic concentration of a solute such as sucrose, water does not enter the protoplast and it remains stable.等渗溶液中, 水不进入原生质体, 原生质体稳定
h 上浒充通大￥ Shanghai Jiao Tong University What is a cell wall for? A wall is for against pressure-2 atm A wall is for maintaining cell shape A wall is for giving cells rigidity Shanghai Jiao Tong University
Shanghai Jiao Tong University Shanghai Jiao Tong University What is a cell wall for? A wall is for against pressure- 2 atm A wall is for maintaining cell shape A wall is for giving cells rigidity