Question: 植物的叶子为什么是绿色的？Why leafs appeared in green colour?
Answer:
所谓颜色，在物力学上就是物体反射光线，进入人类眼睛之后的光线颜色。
而叶片之所以是绿色，就是因为叶片主要之反射太阳光中的关系。
既然会反射，就表示对植物来说，绿色光线其实是多余的。
植物进行的光合作用中，只需要使用接近紫外线的紫色光线和接近红外线的红色光线而已，而绿色的光线就不需要了，所以才会反射出来。
The green colour in leaves is caused by the presence of a compound called "chlorophyll," which the plant produces to do photosynthesis, which is how plants get energy from sunlight. The purpose of chlorophyll is to assist the plant in making food for itself by utilizing energy from sunlight and nutrients from the soil.
The chlorophyll is green because it absorbs red and blue wavelengths of light -- and so green is not absorbed and is reflected, making the plant look green to your eyes. Non-transparent things are the color they are because that is the color that is NOT absorbed -- the colour you see is the colour that is reflected... which is why you see it!..
The chlorophyll is green because it absorbs red and blue wavelengths of light -- and so green is not absorbed and is reflected, making the plant look green to your eyes. Non-transparent things are the color they are because that is the color that is NOT absorbed -- the colour you see is the colour that is reflected... which is why you see it!..
Dear lecturer, you should read this!! LOL~~
