Question

In chlorophyll structure four pyrole rings are united with Mg by their atoms of

• A. N
• B. C
• C. H
• D. O

Answer 1

The correct option is A N

Chlorophyll is a chlorin pigment, which is structurally similar to and produced through the same metabolic pathway as other porphyrin pigments such as heme. At the centre of the chlorin ring is a magnesium ion. The chlorin ring can have several different side chains, usually including a long phytol chain. There are a few different forms that occur naturally, but the most widely distributed form in terrestrial plants is chlorophyll a.