There are indications that pleiotropic plant hormones may actually function by activating the enzymes that release these other, more specific chemical messengers from the cell wall.
有迹象表明，多效性植物激素实际上可能通过激活酶来发挥作用，这些酶从细胞壁释放出这些更为特殊的化学信使。
For a decade, scientists have been trying to decipher what they call the human "epigenome", or the pattern of chemical switches in all 200 types of human cell.
十年来，科学家一直在试图破解他们所称为的人类“表观基因组”，即所有200种人类细胞中的化学开关模式。
The thyroid produces hormones essential for the functioning of every cell in the body; these hormones help regulate growth and chemical reactions.
甲状腺产生的激素对于全身每个细胞的正常运作都是至关重要的；这些激素有助于调节生长和化学反应。
In it, electrodes generate chemical reactions that cleanse the bowl and turn organic waste into carbon dioxide and hydrogen that can be stored in a fuel cell for use at night.
在系统里，电极产生化学反应，清洁厕盆并将有机废物转化成二氧化碳和氢，储存在燃料电池里，供马桶夜间使用。
Chemical synapses also serve to amplify neuronal signals, so that even a small presynaptic nerve terminal can alter the response of a large postsynaptic cell.
化学突触也经常用来放大神经信号，即便是一个很小的突触后细胞也能改变一个很大的突触后细胞对信号的响应。
Ion channels sit in a cell's outer membrane and let electrically charged atoms (ions, as they are known in chemical jargon) in and out of the cell.
离子通道位于细胞外膜，使带电荷原子(即化学术语中的离子)可以进出细胞。
Mutations can be induced by radiation, chemical treatment, foreign pathogens (e.g. viruses), or due to errors that occur during replication of the genome each time a cell divides.
突变可以是由辐射、化学作用、外部病原体(如：病毒)或细胞分裂时基因组复制错误造成。
Through the introduction of the correct chemical at the correct point, the cell can be coaxed in the right direction.
通过正确的化学办法，正当的用途，干细胞可以为人类造福。
The major difference between these two power generators is that the chemical energy of the fuel cell is converted directly to electrical power without intermediate conversion first to heat.
主要的区别在于，燃料电池的化学能量能直接转化成电能而不需要先转化成热能。
Metabolomics studies metabolites, the by-products of the hundreds of thousands of chemical reactions that continuously go on in every cell of the human body.
代谢组学研究代谢物，即人体细胞内持续进行的成千上万化学反应的副产品。
Multiple biochemical processes create chemical modifications of protein molecules, further diversified by association with distinct structures at defined locations of a cell.
多重生化过程带来了蛋白质分子的化学修饰，并通过与定位在细胞某一区间的独特结构发生联系，使化学修饰进一步多样化。
In one second, a cell performs about 10 million energy-consuming chemical reactions, which altogether require about one picowatt (one millionth millionth of a watt) of power.
一秒钟内，一个细胞要执行约一千万次耗能化学反应，而统共仅需要约1皮瓦(百万百万分之一瓦)能量。
At the same pressure the chemical potential of the water's lower inside the cell or inside the enclosure with the membrane.
在同样的压强下，细胞里或膜里的水，的化学势比较低。
Other Japanese automakers have been working to create fuel cell cars, which produce electricity through a chemical reaction between hydrogen and oxygen, with water the only by-product.
其它日本汽车制造商已经开始着手制造燃料电池汽车，这种汽车通过氧和氢的化学反应来发电，而这种化学反应的副产品只有水。
Stem cell expansion can be boosted by immersing the cells in chemical solutions, but the scientists said these methods were limited in their effectiveness.
将干细胞浸在化学溶液中可以促进细胞的扩散。但科学家称这种方法效果不佳。
The team then discovered that a gene alteration stopped a sensory cell on the bugs' antennae from detecting the chemical.
该小组随后发现了一个基因的改变，这一改变阻断了触角上探测这种物质的细胞之间的传感。
Spokespeople from the American Chemical Society and Cell Press told Nature News that they didn't yet know enough about Harvard's policy to comment on it.
美国化学界的发言人和细胞出版社告诉自然新闻杂志他们对哈佛的制度并没有足够了解，因而不能作出评论。
In response to the appearance of such variants in the cell population the concentration of the toxic chemical in the growth medium is increased, thus keeping the selection pressure constant.
为应对细胞污染中出现的变异，有毒物质的浓度是逐步增加的，以此保证筛选力度的稳定。
Chemical reaction quantitive calculation as the core of the virtual cell, its speed and precision are attached importance on the simulation effect.
作为虚拟细胞核心部分的化学反应定量计算，其速度与精度直接影响着模拟效果的好坏。
Mitochondria convert the chemical energy of carbohydrates and fats into energy forms which the rest of the cell can use when needed.
线粒体可将脂肪与碳水化合物的化学能转化为细胞的其余部分需要时可以利用的能源形式。
The fibers are thought to do so by skewering cells, setting off chemical reactions that lead to inflammation, DNA damage and cell death.
石棉纤维被认为通过刺穿细胞引起能够导致炎症、DNA受损和细胞死亡的化学反应而引发癌症。
The cell lost its autotrophic character and became dependent on added chemical energy sources.
细胞丧失了自养的特性，变成依赖于外加的化学能源生活。
The same apparatus with minor modifications can be used to produce an enzyme, an antibiotic, an organic chemical or a single cell protein.
对相同的设备，只要稍作修改就能用来生产一种酶，一种抗生素，一种有机化学物质或一种单一的细胞蛋白质。
These are used to simulate the internal chemical reactions of a cardiac cell and the diffusion of their membrane voltages.
这些是用来模拟心脏细胞内部的化学反应以及他们的膜电压扩散。
The cell lost its autotroph ic character and became dependent on added chemical energy sources.
细胞丧失了自养的特性，变成依赖于外加的化学能源生活。
The cell lost its autotroph ic character and became dependent on added chemical energy sources.
细胞丧失了自养的特性，变成依赖于外加的化学能源生活。
应用推荐