The chlorophyll breaks down when this happens.

这时叶就分解了。

It's formulated with chlorophyll to reduce redness and pore size while also soothing the skin.

它采用叶配方，可缓解红肿和收缩毛孔，同时舒缓肌肤。

They contain chlorophyll, which helps create various colors.

他们所含叶颜色深浅不同。

The chlorophyll inside the leaves traps light from the sun.

叶叶吸收来自太阳光。

Because chlorophyll is green, and plants are full of it.

因为叶是色，而植物充满了叶。

While chlorophyll is there, it's there and it's green.

叶儿产生，儿就会是色。

It's a major component of all proteins and chlorophyll.

它是所有蛋白质和叶主要成分。

Chloroplasts are found only in plant cells and contain chlorophyll.

叶体仅存于植物细胞，而且含有叶。

Chlorophyll is also the substance that gives plants its green colour.

叶也是使植物呈现色物质。

They're just hidden by the abundance of green chlorophyll during the warmer months.

它们只是温暖月份被大量色叶掩盖。

And this is where chlorophyll really shines.

这才是叶真正闪光地方。

To understand why, think back to photosynthesis and chlorophyll.

想知道为什么，请回想一下光合作用和叶。

Chlorophyll enables plant cells to absorb light so it can be used in photosynthesis.

叶使植物细胞能够吸收光线，以进行光合作用。

You see in the fall leaves stop their food making process and the chlorophyll declines.

你看，秋天，树叶光合作用减弱，叶减少。

They're able to transfer the sun's energy and create a chemical known as chlorophyll.

树叶能够转移太阳能量，产生一种被称为叶化学物质。

And not all parts of a leaf always have the same amount of chlorophyll.

叶所有部分并非拥有相同数量叶。

Nitrogen is needed for proteins, DNA and the chlorophyll that let plants perform photosynthesis.

氮是蛋白质、DNA和让植物进行光合作用叶所必需。

As the chlorophyll in a tree's leaves begins to wane, these underlying pigments become visible.

随着树叶中叶开始减少，这些潜色变得可见。

In contrast, chlorophyll fluorescence is a direct measure of photosynthetic activity.

相比之下，叶荧光能直接地测量光合作用活动。

In photosynthesis, chlorophyll absorbs energy from sunlight and creates sugar to feed the plant.

光合作用中，叶从阳光中吸收能量，并合成糖类供养植物。