Often associated on a cellular level with carotene, FTP, name this green pigment that enables plants to carry on photosynthesis.
Its most common form features a chelate with a cyclopentanone ring esterified with a phytol side chain.  Unique to this configuration is the presence of a keto group at the ninth position of the alicyclic pentanone ring.  Its synthesis begins with glycine and succinic acid and results in a structure in which four 5-membered tetrapyrrole rings join to form a giant macrocycle.  One of the common porphyrins, it would be similar to hemoglobin except that it contains magnesium instead of iron.  Often associated on a cellular level with carotene, FTP, name this green pigment that enables plants to carry on photosynthesis.
Its most common form features a chelate with a cyclopentanone ring esterified with a phytol side chain.  
chlorophyll