Question

Basic structure of all chlorophyll comprises of

• A. Cytochrome system
• B. Flavoproteins
• C. Porphyrin system
• D. Plastocyanin

Answer 1

Answer: (C)

Porphyrin system

The photosynthesis is carried out using light energy trapped by chlorophylls. The chlorophyll pigments maximally absorb red and blue lights. The basic structure of chlorophyll molecule is porphyrin system. The chlorophyll porphyrin comprises a cyclic tetrapyrrole head to which a long phytol tail is attached. One atom of magnesium is coordinated to the center of tetrapyrrole head.

So, the correct answer is option C.