滋养层细胞(Feeder layer):是指通过细胞-细胞相互作用,或分泌蛋白或其他物质,位于胚胎干细胞和iPS细胞的培养底层,以支持这些干细胞生长的动物源性或人...
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在包被层和卵黄多核层之间是深层细胞(deep cell),它们将发育成胚体。荧光染料示踪 研究表明,早期胚盘细胞的分化方向尚未被决定,而在原肠胚形成前,胚胎中的每个细胞 的发育命...
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胚乳细胞化完成后,进入分化期,由胚乳细胞分化为表层细胞(aleurone cell)、亚糊粉层细胞(subaleurone eell)和淀粉胚乳细胞(starchy endospermcell),贮藏营养物质也在同时积累。
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色素团下面是一层细胞,它可以反射周围环境的光,这些细胞可以帮助章鱼精确地匹配周围的颜色。
Just below the chromatophores is a layer of cells that reflect light from the environment, and these cells help the octopus create a precise match with the colors that surround them.
真血管内部有一层细胞包被,可以确保血液不会凝结。
Real blood vessels have an internal coating of cells that ensure that the blood does not clot.
植入之后不久,胚囊的壁,即滋养细胞含有两层细胞。
Shortly after implantation the blastocyst wall, the trophoblast, consists of two layers of cells.
That there are other molecules in the lipid bilayer and they're important for cells getting information or getting molecules from outside.
还有一些其它分子在这个脂质双分子层上,它们对于细胞接收信息,和接受外来分子十分重要
The cells of this surrounding sheet have become different in some way and they develop into the placenta and the extra embryonic tissues.
环抱在周围的这一层细胞,已经开始逐渐分化,最终成为胎盘,及额外的胚胎组织
If a cell membrane was indeed just a lipid bilayer, then glucose could never enter the cell because it can't permeate through cell membranes.
如果细胞膜只是一个脂质双分子层的话,葡萄糖就不可能进入细胞,因为它不能渗透过细胞膜
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