这些蛋白质促进血细胞的生成。
维生素B有助于红细胞的再生。
神经细胞的长管状膜携带电脉冲。
The long, tubular membranes of nerve cells carry electrical impulses.
左下方那片弯弯曲曲的轮廓就是心肌细胞的切面，它们使心脏跳动。
The squiggly outline at the lower left is the section of myocardial cells, which makes the heart beat.
在其他情况下，病毒以如此高的数量繁殖，以至于释放出的病毒简直就是细胞的爆炸。
In other cases, the virus propagates in such high numbers that release is literally an explosion of the cell.
现在，这个问题已经通过将其直接注入细胞的方法解决了。如图所示，这是基因传递的一个问题。
Now, the problem is solved by injecting it directly into the cell. Shown here, that's one issue with gene delivery.
最后，这项实验提出了这样一种可能性，即这种神经元可以用于目前使用胎儿脑细胞的实验治疗，避开了一个令人不安的伦理问题。
Finally, the experiment presents the possibility that such neurons could be used in experimental treatments that currently use fetal brain cells, sidestepping an uncomfortable ethical issue.
细胞的繁殖导致有机体的迅速生长。
Multiplication of cells leads to rapid growth of the organism.
这些癌细胞的产生抑制了正常白血球的生成。
The production of these cancerous cells suppresses the production of normal white blood cells.
癌细胞的繁殖和生长可通过放射线辐射加以抑制。
The reproduction and growth of the cancerous cells can be suppressed by bombarding them with radiation.
脑细胞的变化会影响大脑不同区域之间的交流。
Changes in brain cells can affect communication between different regions of the brain.
正是这些串珠状的DNA 链的结构决定了它们所在细胞的命运。
It is the structure of these beaded DNA strings that guide the fate of the cells in which they are located.
和我们之前谈到的胚胎干细胞有所不同，这是一个成人干细胞的例子。
Different from the embryonic stem cell we talked about before, it's an example of an adult stem cell.
干细胞研究人员已经找到了一种从成年人身上获得完全可用的干细胞的方法。
Stem cell researchers have found a way to get perfectly usable stem cells from fully grown human beings.
具体来说，康拉德认为大脑的许多能力源于组成每个脑细胞的单个分子的模式识别能力。
Specifically, Conrad believes that many of the brain's capabilities stem from the pattern-recognition proficiency of the individual molecules that make up each brain cell.
通过限制食物的摄入，热量限制使进入细胞的葡萄糖量降到最少，并减少ATP 的产生。
By limiting food intake, caloric restriction minimizes the amount of glucose entering cells and decreases ATP generation.
哺乳动物将营养物质输送到骨细胞的微小管道是平行排列的，而鸟类的管道则是随机排列的。
Whereas in mammals the tiny tubes that convey nutrients to bone cells are arrayed in parallel lines, in birds the tubes form a random pattern.
“巴基鲸”化石由一个原细胞的完整头盖骨所组成，这是现代鲸类祖先中已经灭绝的一个物种。
The fossil consists of a complete skull of an archaeocyte, an extinct group of ancestors of modern cetaceans.
与其他老鼠不同的是，在基因上无法制造这些特殊细胞的老鼠在感染细菌时不会表现出硝酸盐水平的升高。
Unlike other mice, mice that are genetically incapable of making these particular cells do not show elevated levels of nitrates when infected with bacteria.
随着细胞的死亡，有些人大脑前部和侧部的收缩，在三十多岁时就能观察到，但是也有些人直到六七十岁依然不明显。
Contraction of front and side parts as cells die off was observed in some subjects in their thirties, but it was still not evident in some sixty and seventy-year-olds.
如果你把它们展开，你会发现它们含有特定的基因，特定的DNA序列，这些基因序列有助于决定身体细胞的发育。
If you stretch them out you will find they contain certain genes, certain sequences of DNA that help determine how the cells of the body will develop.
其他的表观遗传过程似乎是随机发生的，而其他过程则是正常的，比如那些引导胚胎细胞成为心脏、大脑或肝细胞的过程。
Other epigenetic processes appear to occur randomly, while others are normal, such as those that guide embryonic cells as they become heart, brain, or liver cells, for example.
当我们了解了更多关于人类细胞的DNA，以及它是如何控制细胞的生长和发育的，那么也许我们可以解释一个非常重要的观察结果。
As we learn more about the DNA in human cells and how it controls the growth and development of cells, then maybe we can explain a very important observation.
植物细胞的骨架在丛枝周围重组。
The plant cell cytoskeleton is reorganized around the arbuscules.
植物细胞的骨架在丛枝周围重组。
The plant cell cytoskeleton is reorganized around the arbuscules.
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