Question

Porphyra and Dictyota contain the following pigments respectively

• A. Phycoerythrin and fucoxanthin
• B. Xanthophyll and $\gamma$-phycoerythrin
• C. Chlorophyll d and chlorophyll b
• D. Fucoxanthin and phycoerythrin

Answer 1

Answer: (A)

Phycoerythrin and fucoxanthin

The algal phylum of Rhodophyta (also known as red algae) is considered as one of the oldest groups of algae; characterized by the presence of phycoerythrin (a red protein-pigment complex), carrageenan and phlorotannins. Porphyra is a cold water seaweed that which belongs to red algae phylum of division Rhodophyta.

Fucoxanthin is a brown seaweed pigment that is found in most brown algae, giving them a brown or olive-green colour. Dictyota belongs to a large order in brown algae (class Phaeophyceae).

So, the answer is A.