Osmosis out of a cell can cause big changes.

细胞外的渗透作用会引起很大的变化。

Usually, a red blood cell can flow easily through veins.

通常情况下，红细胞可以轻松地流过静脉。

Changes in brain cells can affect communication between different regions of the brain.

脑细胞的变化会影响大脑不同区域之间的交流。

These cells can develop into many different kinds of cells or tissues.

这些细胞可以发育成许多不同种类的细胞或组织。

Importance of HeLa The importance of Henrietta's cells cannot be overstated.

HeLa 的重要性海瑞塔细胞的重要性怎么强调都不为过。

In comparison, only about 50 cells can fit in that amount of space.

而50个细胞能占据这么大的空间。

I told you already about the great things that the hair cell can do.

我已经为各位介绍了毛细胞有多厉害。

When telomeres become too short, a cell can no longer divide and it dies.

当染色体终端太短时，细胞也就无法再分裂了，这意味着一个细胞的死亡。

Professor Hsu said the loss of the pigment-regenerating stem cells cannot be reversed.

Hsu教授表示色素再生干细胞的损失是无法逆转的。

But, Bryant says, only certain types of cells can be preserved in this way.

但是，布莱恩特说，只有特定类型的细胞可以用这种方式保存下来。

When this DNA damage happens, cells can stop working properly and sometimes get killed off.

当DNA受损时，细胞就会停止正常工作，而且有时会被杀死。

So a bigger single cell can't catch enough stuff to feed all its volume.

所以一个更大的单细胞无法获取足够的东西来养活它所有的体积。

His own partly working thymus was removed so that new immune cells can develop.

他自己部分工作的胸腺被切除，这样就可以产生新的免疫细胞。

But the molecules scientists use instead are toxic, and most cells can't survive the process.

但科学家使用的分子是有毒的，大多数细胞无法在这个过程中存活。

Campaigners hope the developed embryonic cells can repair damaged tissues and cure diseases. James Gallagher has more.

支持者希望发达胚胎细胞能修复受损组织并治愈疾病。詹姆斯·加拉赫报道。

Individual cells can be connected in series or parallel to build up either voltage or current.

单个电池可以通过串联或并联的方式形成电压或电流。

Cells can also die violently-for instance, when infected-but mostly they die because they are told to.

细胞也可能暴死——比如当你被感染时——但在大多数情况下它们是按照指令死去的。

Once trained, T cells can travel anywhere in the body to hunt down danger, she said.

她说，一旦经过训练，T细胞就可以在体内的任何地方追捕危险。

And these emissions constitute a really strong demonstration of just how active the hair cell can be.

这些被释放的声音非常有力地展示了毛细胞有多活跃。

Just a small population of blood stem cells can regenerate a whole body's worth of healthy marrow.

只需要少许造血干细胞，就能再生整个身体所需的健康的骨髓。