Question

Which of the following statement is correct regarding the structure of phycobilins?

• A. It has open tetrapyrrole ring.
• B. Magnesium is absent.
• C. Phytol chain is absent.
• D. All of the above

Answer 1

The correct option is D All of the above

Phycobilins are the pigments which are characteristic of red or blue algae. The phycobilins are of two types called as phycoerythrin and phycocyanin. They are composed of open chain of four pyrrole rings. As compared to the structure of chlorophyll pigment, magnesium and phytol chain is absent in phycobilins.

Thus, the correct answer is option 'All of the above'.