"Crucial to this ring structure is that it can hold an iron atom in its center -- just like the heme, the ring-shaped red dyes in hemoglobin. Chlorophyll, on the other hand, has a similar ring ...

THE fourth Pedler Lecture of the Chemical Society was delivered by Prof. Hans Fischer at the Royal Institution on February 22, his subject being the constitution of chlorophyll A. Prof. Fischer ...

Green and red are the colors of life: green for the chlorophyll in plants, red for the hemoglobin in blood cells of man and animal. That red-blooded human beings must eat green leaves, every ...

The tetrapyrrole ring, a chemical structure made up of four smaller rings, occurs in the chlorophyll of plants, the hemoglobin of blood and many enzymes which, like hemoglobin, take part in ...

"Crucial to this ring structure is that it can hold an iron atom in its center - just like the heme, the ring-shaped red dyes in hemoglobin. Chlorophyll, on the other hand, has a similar ring that ...