評論
打印
Osmosis
滲透作用
When you water plants or flowers, do you pour water on their leaves?
你給植物或花澆水時，會把水倒在它們的葉子上嗎？
No, you don't. You may pour water on the ground.
不,你不會。你可能把水倒在地上
Then the plants and flowers absorb water through their roots.
然后植物和花從根部吸收水分。
How can they do so?
它們怎么辦到的呢》
It is because they can perform osmosis.
這是因為它們可以進行滲透作用。
Osmosis is the phenomenon of water flow.
滲透是水流動的現象。
The roots of plants work as a filter.
植物的根是一個過濾器。
They prohibit the nutrients in the roots from going out of the plant, but let the water in the plants.
它們禁止根部的營養成分流出去，但又讓水分進來。
Plants usually have big and long roots, because they want to absorb more water from the ground.
植物的根通常大而長，因為它們想從地面吸收更多的水分。
