虽然有时人们会将plasma membrane和cell membrane视为两个不同的概念，但实际上它们指的是同一生物结构。这个膜围绕在细胞的最外层，由脂质和蛋白质组成，起到保护细胞、调控物质进出、维持细胞形态和参与细胞间通讯等多种重要功能。在生物学中，plasma membrane这个术语在英文文献中更常见，而cell membrane...
The plasma membrane contains a number of other forms of lipids, but in lesser amounts. Some of these molecules are connected with carbohydrate chains that protrude from the surface of the cell. The various carbohydrate chains on the outer surface form a fuzzy coat, often known as theglycocalyx...
百度试题 结果1 题目plasma membrane 和 cell membrane 区别在哪里 相关知识点: 试题来源: 解析 没区别,都是指同一个概念,是指围绕在细胞最外层,由脂质和蛋白质组成的生物膜 反馈 收藏
CELLMEMBRANE Theroleofthemembraneis veryimportantinmaintainingcell stabilityandenablingthecellto operateatoptimumlevels. Thecellmembrane(plasma membrane), -selectivelycontrolsthemolecules entering&leavingthecell. -allowsthecytoplasmtohavea differentcompositionfromthethe ...
TwoBasicCellTypes Cellsthatdonotcontaininternalmembrane-boundstructuresarecalledprokaryoticcells.•Thecellsofmostunicellularorganismssuchasbacteriadonothavemembraneboundstructuresandarethereforecalledprokaryotes.7.1 TwoBasicCellTypes Cellscontainingmembrane-boundstructuresarecalledeukaryoticcells.•Mostofthemulti-cellular...
plasma membrane- a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell; proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell; "all cells have a cell membrane" ...
The Cell (Plasma) Membrane Cell membrane (semi-permeable) – controls what goes in/out of the cell to maintain homeostasis (equilibrium) Made up of a phospholipid bilayer with channel proteins (transport proteins) Phospholipids Fatty acid tails – hydrophobic = nonpolar Phosphate head – hydrophilic...
cell membrane 包围细胞质的一套薄膜。又称细胞质膜、外周膜。生物 膜的一种,它是由蛋白质、脂质、多糖等分子有序排列组成的动态薄层结构,平均厚度约10纳米。有人将细胞膜外一层含多糖的物质称为外被,细胞膜和外被合称为细胞表面。 化学组成 细胞膜主要由脂质、蛋白质(包括酶)和多糖组成。脂质和蛋白质各约占...
Function cont. The membrane separates all cells from the external environment which allows cells to be chemically different from their environment. The cell membrane also works to keep the internal functions of the cell constant and to maintain cell “balance”. This balance is called HOMEOSTASIS ...
cell membrane 细胞膜就真核生物来讲(主要是植物细胞),细胞最外层有层相对较硬的细胞壁,主要成分是果胶和纤维素,起到保护细胞的作用.通俗来讲细胞膜是在细胞壁以内的细胞的最外层结构,包裹着细胞内的所有细胞质和细胞器.一般来讲,动物细胞没有细胞壁.而就原核生物来讲(主要是细菌),细胞壁同样起到保护细胞的...