Pili and fimbriae G short, fine, hairlike appendages that are not involved in motility Fimbriae/fimbria: 1000piece/cell, adhesion to host epithelium Sex pill/pilus: 1-10piece/celly sexual conjugation, they are genetically determined by sex factors or conjugative plasmids and are required for bacterial mating Receptors of some bacterial viruses

细胞质膜( cytoplasmic membrane),又称质膜( plasma membrane)、细胞膜( cell membrane)或内膜( inner membrane ),是紧贴在细胞壁内侧、包围着细胞质的一层柔软、脆弱、富 有弹性的半透性薄膜,厚约7~8nm,由磷脂(占20%~30%)和蛋 白质(占50%~70%)组成

Typical Length Scales in Biology IA lO microtubule DNA width width typical animal cell length of DNA in a chromosome

Effect of laminar shear stress on cell alignment(Dewey eta.1981) Photos removed due to copyright considerations See Dewey, C F, et al. \The dynamic response of vascular endothelial cells to fluid shear stress J Biomech Eng 1981 Aug: 103 (3): 177-85 No flow

一、英译中(Translate) 1.plasmodesma 2.co-transport 3. pressure flow theory 4. cytoplasmic pumping theory 5. microfibril 6. receiver cell

一、细胞生物学研究的内容和现状 二、细胞生物学是现代生命科学的重要基础学科 三、细胞生物学的主要研究内容 四、当前细胞生物学研究的总趋势与重点领域 五、细胞重大生命活动的相互关系

Images taken from slides by B. Bayazit, G. Dudek, J. C. Latombe and. Moore Robot Motion Planning and (a little)Computational Geometry Topics: Transforms Topological Methods Configuration space Skeletonization Potential Functions Cell-decomposition Methods Non-holonomic Motion Collision

2. Electron microscopy Transmission Electron microscopy (TEMs) Scanning Electron microscopy (SE 1) Transmission Electron microscopy (TEMs) 1931 Ruska

PLANT TISSUE CULTURE is a blanket term for the in vitro cultivation of all plant parts under aseptic conditions. \plan t tissue culture\ is used as a blanket term for protoplast, cell, tissue and organ culture under aseptic conditions

8-1 概述 8-2 化学电池(Chemical cell) 8-3 参比电极及其构成 8-4 金属指示电极及其构成 8-5 膜电位与离子选择性电极(Membrane potential and ISE)