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公用筷子传染腮腺炎病毒诊断试剂盒FOCUS

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【公司名称】 广州健仑生物科技有限公司
【市场部】     欧

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【公司地址】 广州清华科技园创新基地番禺石楼镇创启路63号二期2幢101-103室

因此细胞质基质的概念受电子显微镜检的影响很大，不过有条件的理解，基质的含义仍然不变，即在细胞中除了可见的结构外，均质透明的部分为基质。在细胞质中包含下列各重要的细胞器：
1.内质网（endoplasmic reticulum，简写 ER）*在电子显微镜下发现这种膜系统是在细胞的内质中（K.R.Porter和A.D.Claude，1945），因此称为内质网（图1－4）。它是由膜形成的一些小管、小囊和膜层（扁平的囊）构成的。普遍存在于动植物细胞中（哺乳动物的红血细胞除外），形状差异较大，在不同类的细胞中，其形状、排列、数量、分布不同，即使在同种细胞，不同发育时期也不同。但在各类型的成熟细胞内，内质网有一定的形态特征。根据内质网形态的不同可分为几种，主要的是糙面型或颗粒型（rough ER或 granular ER）及滑面型或无颗粒型（smooth ER或 agranular ER）。糙面内质网的主要特点，是在内质网膜的外面附有颗粒，这些颗粒叫做核（糖核）蛋白体（ribosome）或称核糖体。核蛋白体由2个亚单位构成，它们相互吻合构成直径约20nm的完整单位。核蛋白体含有丰富的核糖核酸和蛋白质，是蛋白质合成的主要部位。这种类型的内质网常呈扁平囊状，有时也膨大成网内池（cisterna）。滑面内质网的特点是膜上无颗粒，膜系常呈管状，小管彼此连接成网。这两种内质网可认为是一个系统，因为它们在一个细胞内常是彼此连接的，而且糙面内质网又与核膜相连。糙面内质网不仅能在其核蛋白体上合成蛋白质，而且也参加蛋白质的修饰、加工和运输。滑面内质网与脂类物质的合成、与糖原和其他糖类的代谢有关，也参与细胞内的物质运输。整个内质网提供了大量的膜表面，有利于酶的分布和细胞的生命活动。
2.高尔基器（Golgi apparatus）或称高尔基体（Golgi body）、高尔基复合体（Golgi complex）。用一定的固定、染细菌技术处理高等动物的细胞，高尔基器呈现网状结构，大多数无脊椎动物则呈现分散的圆形或凹盘形结构。但在电子显微镜下观察，高尔基器也是一种膜结构（图1—6）。它是由一些表面光滑的大扁囊（或称网内池）和小囊构成的。

The concept of cytoplasmic matrices is therefore strongly influenced by electron microscopy, but with the understanding that the matrices remain the same, the homogenous and transparent part of the matrix is ​​the matrix in the cells except for the visible structures. The cytoplasm contains the following important organelles:
1. The endoplasmic reticulum (abbreviated ER) was first observed under an electron microscope that this membrane system is in the cell's endoplasm (KRPorter and ADClaude, 1945) and is therefore called the endoplasmic reticulum ). It is made up of a few small tubules, sachets and membranes (flattened bladders) formed by the membrane. Common in animal and plant cells (except for mammalian red blood cells), the shape of large differences in different types of cells, its shape, arrangement, quantity and distribution of different, even in the same kinds of cells, different developmental stages are also different. However, in all types of mature cells, the endoplasmic reticulum has some morphological characteristics. Depending on the morphology of the endoplasmic reticulum can be divided into several, the main is rough or granular (rough ER or granular ER) and sliding surface or without particles (smooth ER or agranular ER). The main characteristic of rough endoplasmic reticulum is attached to the outside of the endoplasmic reticulum membrane particles, these particles called the nucleus (ribosome) ribosome (ribosome) or ribosome. The ribosome consists of two subunits, which coincide with each other to form a complete unit of about 20 nm in diameter. Ribosomes are rich in RNA and protein, which are the main components of protein synthesis. This type of endoplasmic reticulum usually flattened cystic, sometimes enlarged into cisterna (cisterna). Sliding surface endoplasmic reticulum is characterized by no particles on the membrane, the membrane often tubular, tubular connection to each other into a network. These two endoplasmic reticulum can be considered as a system, because they are often connected to each other in a cell, and rough endoplasmic reticulum and the nuclear membrane connected. The rough endoplasmic reticulum not only synthesizes proteins on its ribosome but also participates in the modification, processing and transport of proteins. The synovial endoplasmic reticulum and lipid synthesis, and glycogen and other carbohydrate metabolism, but also involved in intracellular material transport. The entire endoplasmic reticulum provides a large number of membrane surfaces that favor the distribution of enzymes and the life activities of cells.
Golgi apparatus or Golgi body, Golgi complex. With certain fixed, dye bacteria treatment of higher animal cells, Golgi showed reticular structure, most of the invertebrates showed scattered circular or concave disc-shaped structure. However, under electron microscopy, the Golgi apparatus is also a membrane structure (Fig. 1-6). It consists of a number of smooth surface of the large capsule (also known as the net pool) and small capsule composition.