植物体的结构基础细胞 The Structure basis of plants -----Cell ·细胞的概念 concepts on cells 植物细胞的形态结构 morphology and structure of plant cells ·植物细胞的周期与增殖cel cycle and reproduction of plant celIs 植物细胞的生长、分化与 组织的形成 growth and differentiation of plant cells, and formation of tissues
植物体的结构基础 —细胞 The Structure Basis of Plants ----- Cell • 细胞的概念 concepts on cells • 植物细胞的形态结构 morphology and structure of plant cells • 植物细胞的周期与增殖 cell cycle and reproduction of plant cells • 植物细胞的生长、分化与 组织的形成 growth and differentiation of plant cells, and formation of tissues
细胞一生命活动的基本单位 Cells-The Basic Unit of Life 细胞是构成生命有机体的基本结构单位basc structure unit of organisms 细胞是代谢与功能的基本单位 basic metabolic and functional unit of organisms 细胞是生命有机体生长与发育的基础 basis of growth and development 细胞是遗传的基本单位,细胞具有遗传的全能性 basic unit of heredity, e. g totipotency
细胞— 生命活动的基本单位 Cells—The Basic Unit of Life • 细胞是构成生命有机体的基本结构单位 basic structure unit of organisms • 细胞是代谢与功能的基本单位 basic metabolic and functional unit of organisms • 细胞是生命有机体生长与发育的基础 basis of growth and development • 细胞是遗传的基本单位，细胞具有遗传的全能性 basic unit of heredity, e. g. totipotency
figure 3. 1 Robert Hookes microscope, as illustrated in one of his works. ( Courtesy National Library of Medicine)
Figure 3. 2A Acompound light microscope Figure 3. 2B Stereomicroscope(dissecting microscope)
Figure 3.3A A transmission electron microscope Courtesy LEO Electronenmikroskopie gmbH, germany
E0438P Figure 3.3B A scanning electron microscope. Courtesy LEo Electron Microscopy Ltd, England)
细胞的类型 The Type of Cells 核 核 细细 胞胞 Cell wall Plasma flagellum Chloroplast- nucleus membrane Nuclear Cytoplasm Nucleoid (region Starck containing DNA) hotosynthetic membranes Py
细胞的类型 The Type of Cells 原核细胞 真核细胞
原核细胞 Prokaryotic Cel 遗传信息量小 Transmission Electron Microscope Image 其信息载体仅为 环状DNA构成 结构简单—原核 细胞内没有分化为 以膜为基础的具有 专门结构和功能的 FIo 3-1b A procaryotic cell lacks eucaryotic organelles such as a well-defir: ol nucler e:isulum. The components presca: include cell wall(CW), ccl 细胞器和细胞核膜 membrane (CM). auclear cg and ribosomes(R). van iterson, wi, cnd)A.At Antonis van Leeuwenhoek, 42.365-386(1976)
原核细胞 Prokaryotic Cell • 遗传信息量小—— 其信息载体仅为一 环状DNA构成 • 结构简单 ——原核 细胞内没有分化为 以膜为基础的具有 专门结构和功能的 细胞器和细胞核膜
Prokaryotic Cell Structure Come with mel Lets' take a look
Scanning Electron Microscope Images Am
