Animal and plant cells have cell membranes.

动物和植物都具有。

Cell membranes allow for diffusion of certain molecules.

允许某些分子扩散。

Inside the cell membrane, cells have smaller parts called organelles.

在内，有着较小的器。

Both plant cells and animal cells are surrounded by a cell membrane.

动植物的都是被一层包裹。

Solubility is important because your cell membranes are made of lipids.

溶解要，因为是由脂质组成的。

The cell membrane pinches to separate the two sets of chromatids into two cells.

挤压将两组染色单体分成两个。

Repeated sickling of red blood cells damages their cell membranes and promotes premature destruction.

反复镰变会损伤红，使其过早破坏。

The cell membrane is covered with tiny projections.

上覆盖著微小的突起物。

When it gets there, the bubble surrounding the antibody fuses to the cell membrane.

当抗体到达后，抗体周围的气泡会融入。

The exchange of materials occurs between cells and their environment across the cell membrane.

物质交换穿过发生在与其环境之间。

One portion of the molecule recognises a protein on the cell's membrane, and links to it.

响尾蛇蛋白分子的一部分能识别，并依附其上。

These curious beasts, are cell fragments rather than complete cells -- though they are still surrounded by cell membranes.

这些不寻常的“野兽”是碎片，而不是完整的--尽管它们仍然被包裹着。

Animal Cells A typical animal cell will include the nucleus, a cell membrane and a cell cytoplasm.

动物一个典型的动物包括核、和质。

See, synthetic surfactants are really good at disrupting cell membranes: that thin layer that surrounds all living cells.

合成表面活剂非常擅长破坏：包围所有活的薄层。

Both of these are called diffusible because they're small enough to diffuse across cell membranes.

这两者都被称作可扩散钙，因为它们的体积足够小，可以穿过完成扩散。

So the first lecture was about cell membranes and stuff, so his question is, what are some roles of the cell membrane?

所以第一节课是关于之类的东西，所以他的问题是，的一些作用是什么？

Meanwhile, lipid- or fat-soluble molecules, like oxygen and carbon dioxide, can dissolve and then diffuse across the endothelial cell membranes.

同时，脂质或脂溶分子，如氧气和二氧化碳，可溶解并通过内皮扩散。

Now, calcium gets into the cell through two types of channels, or cell doors, within the cell membrane.

钙子通过在上的两类通道，或者说是入口，进入。

Okay, so as a quick recap: the protein dystrophin is super important for stabilizing the muscle cell membrane.

抗肌萎缩蛋白对肌纤维稳定的维持极其要。

Water can travel across cell membranes from where there's a higher concentration of water to where there's a lower concentration.

水可以透过从低渗透压一侧流至高渗透压侧。