Patient's porphyrin levels must be through the roof.

病人的紫质程度一定高。

They create porphyrins, pigments that color blood red and chlorophyl green.

它们产生，这种色素使血变成红色，叶绿变成绿色。

This heme is a large molecule that's made up of four pyrrole subunits that forms a ring, and this structure is called a porphyrin.

血红素是个大分子，由四个吡亚基形成环形，这个结构叫作。

This heme is a large molecule that's made up of four pyrrole subunits that form a ring, and this structure is called a porphyrin.

血红素是一个由4个吡亚基形成的环状大分子，这种结构称之。

Now, heme synthesis is also called porphyrin synthesis and when halted, it result in the buildup of one of its precursors molecules.

血红素合成也被称合成，如果停止，这会导致它的一个前体分子的积累。

In the 1920s and 1930s, biochemists—led by Hans Krebs and Carl and Gerty Cori—began to work out many of the central metabolic pathways of life: the citric acid cycle, glycogenesis and glycolysis, and the synthesis of steroids and porphyrins.

在二十世纪二三十年代，由汉斯·克雷布斯（Hans Krebs）和卡尔（Carl Krert）和格蒂·科里（Gerty Cori）领导的生物化学家开始研究许多生命的中心代谢途径：柠檬酸循环，糖原合成和糖酵解，以及类固醇和的合成。