So what is active transport for?
那么主动运输是用来干什么的呢？
active transport
英汉-汉英词典
[生化]主动转运；活性迁移
词组 | 习惯用语
您要查找的是不是：
Active transport Active transport 主动运输
simple active transport 简单主动输送
secondary active transport 继发性主动转运；次级主动转运；次级主动运输；二级主动运输
second active transport 继发性主动转运
Indirect active transport 间接主动运输
Active Transport Entity 活跃传输实体
active transport uptake 由主动运输吸收
secondary active transport system 次级主动运输系统
active transport [植] 主动转运；活性迁移
原声例句
生物学基础入门
生物学基础入门
Watch part 2 to learn about active transport.
观看第 2 集，了解主动运输吧。
生物学基础入门
All of these things require the movement of substances by either diffusion, osmosis, or active transport.
所有这些都需要物质通过扩散、渗透或主动运输的方式进行运动。
生物学基础入门
So we know all about the movement of gases and water, but what is active transport for?
所以我们都知道气体和水的运动，但什么是主动运输呢？
休伯曼实验室
So not having active transport, but rather passive transport.
所以没有主动运输, 而是被动运输。
生物学基础入门
Cells which carry out a lot of active transport often have lots of mitochondria to give them the energy they need.
进行大量主动运输的细胞通常有大量的线粒体来提供它们所需的能量。
生物学基础入门
Growth and repair of cells, muscle contraction, protein synthesis, sending nerve impulses, absorbing molecules, and active transport, to name just a few.
细胞的生长和修复、肌肉收缩、蛋白质合成、发送神经冲动、吸收分子和主动运输等等。
Crash Course 解剖生理学篇
The tissue lining your small intestines, for instance, is what allows you to absorb nutrients through diffusion and active transport, so that's pretty important.
比如说，小肠里的组织让你能够通过扩散和主动运输吸收营养，所以这很重要。
生物学基础入门
So from these two parts, you should know how cells take in substances and get rid of waste by diffusion osmosis and active transport.
所以从这两个部分，你应该知道细胞是如何通过扩散渗透和主动运输来吸收物质和排出废物的。
Crash Course 解剖生理学篇
And digestion allows for the absorption of those nutrients as they pass from the small intestine into the blood, by both active and passive transport.
消化允许吸收这些营养物质，当它们从小肠进入血液时，通过主动和被动运输。
中文百科
主动运输
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zh-hans:钠-钾泵，初级主动运输的一例
主动运输（英语：Active transport）是一种物质逆化学梯度的跨细胞膜的运动。在细胞中，这一过程通常伴随着高浓度的分子积累，如金属离子、葡萄糖和氨基酸。相对于被动运输，主动运输的进行需消耗能量。
英语百科
Active transport 主动运输
Active transport is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration in the direction against some gradient or other obstructing factor (often a concentration gradient). Unlike passive transport, which uses the kinetic energy and natural entropy of molecules moving down a gradient, active transport uses cellular energy to move them against a gradient, polar repulsion, or other resistance. Active transport is usually associated with accumulating high concentrations of molecules that the cell needs, such as ions, glucose and amino acids. If the process uses chemical energy, such as from adenosine triphosphate (ATP), it is termed primary active transport. Secondary active transport involves the use of an electrochemical gradient. Examples of active transport include the uptake of glucose in the intestines in humans and the uptake of mineral ions into root hair cells of plants.
近义、反义、联想词
近义词
n.transport
英英词典
active transport n.
- transport of a substance (as a protein or drug) across a cell membrane against the concentration gradient; requires an expenditure of energy
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