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公用筷子傳染腮腺炎病毒診斷試劑盒FOCUS

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公用筷子傳染腮腺炎病毒診斷試劑盒FOCUS

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【公司名稱(chēng)】 廣州健侖生物科技有限公司
【市場(chǎng)部】     歐

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【騰訊  】 
【公司地址】 廣州清華科技園創(chuàng)新基地番禺石樓鎮(zhèn)創(chuàng)啟路63號(hào)二期2幢101-103室

因此細(xì)胞質(zhì)基質(zhì)的概念受電子顯微鏡檢的影響很大，不過(guò)有條件的理解，基質(zhì)的含義仍然不變，即在細(xì)胞中除了可見(jiàn)的結(jié)構(gòu)外，均質(zhì)透明的部分為基質(zhì)。在細(xì)胞質(zhì)中包含下列各重要的細(xì)胞器：
1.內(nèi)質(zhì)網(wǎng)（endoplasmic reticulum，簡(jiǎn)寫(xiě) ER）*在電子顯微鏡下發(fā)現(xiàn)這種膜系統(tǒng)是在細(xì)胞的內(nèi)質(zhì)中（K.R.Porter和A.D.Claude，1945），因此稱(chēng)為內(nèi)質(zhì)網(wǎng)（圖1－4）。它是由膜形成的一些小管、小囊和膜層（扁平的囊）構(gòu)成的。普遍存在于動(dòng)植物細(xì)胞中（哺乳動(dòng)物的紅血細(xì)胞除外），形狀差異較大，在不同類(lèi)的細(xì)胞中，其形狀、排列、數(shù)量、分布不同，即使在同種細(xì)胞，不同發(fā)育時(shí)期也不同。但在各類(lèi)型的成熟細(xì)胞內(nèi)，內(nèi)質(zhì)網(wǎng)有一定的形態(tài)特征。根據(jù)內(nèi)質(zhì)網(wǎng)形態(tài)的不同可分為幾種，主要的是糙面型或顆粒型（rough ER或 granular ER）及滑面型或無(wú)顆粒型（smooth ER或 agranular ER）。糙面內(nèi)質(zhì)網(wǎng)的主要特點(diǎn)，是在內(nèi)質(zhì)網(wǎng)膜的外面附有顆粒，這些顆粒叫做核（糖核）蛋白體（ribosome）或稱(chēng)核糖體。核蛋白體由2個(gè)亞單位構(gòu)成，它們相互吻合構(gòu)成直徑約20nm的完整單位。核蛋白體含有豐富的核糖核酸和蛋白質(zhì)，是蛋白質(zhì)合成的主要部位。這種類(lèi)型的內(nèi)質(zhì)網(wǎng)常呈扁平囊狀，有時(shí)也膨大成網(wǎng)內(nèi)池（cisterna）。滑面內(nèi)質(zhì)網(wǎng)的特點(diǎn)是膜上無(wú)顆粒，膜系常呈管狀，小管彼此連接成網(wǎng)。這兩種內(nèi)質(zhì)網(wǎng)可認(rèn)為是一個(gè)系統(tǒng)，因?yàn)樗鼈冊(cè)谝粋€(gè)細(xì)胞內(nèi)常是彼此連接的，而且糙面內(nèi)質(zhì)網(wǎng)又與核膜相連。糙面內(nèi)質(zhì)網(wǎng)不僅能在其核蛋白體上合成蛋白質(zhì)，而且也參加蛋白質(zhì)的修飾、加工和運(yùn)輸?；鎯?nèi)質(zhì)網(wǎng)與脂類(lèi)物質(zhì)的合成、與糖原和其他糖類(lèi)的代謝有關(guān)，也參與細(xì)胞內(nèi)的物質(zhì)運(yùn)輸。整個(gè)內(nèi)質(zhì)網(wǎng)提供了大量的膜表面，有利于酶的分布和細(xì)胞的生命活動(dòng)。
2.高爾基器（Golgi apparatus）或稱(chēng)高爾基體（Golgi body）、高爾基復(fù)合體（Golgi complex）。用一定的固定、染細(xì)菌技術(shù)處理高等動(dòng)物的細(xì)胞，高爾基器呈現(xiàn)網(wǎng)狀結(jié)構(gòu)，大多數(shù)無(wú)脊椎動(dòng)物則呈現(xiàn)分散的圓形或凹盤(pán)形結(jié)構(gòu)。但在電子顯微鏡下觀察，高爾基器也是一種膜結(jié)構(gòu)（圖1—6）。它是由一些表面光滑的大扁囊（或稱(chēng)網(wǎng)內(nèi)池）和小囊構(gòu)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.