Question

Porphyra and Dictyota contain the following pigments respectively
(1) Phycoerythrin and fucoxanthin (2) Xanthophyll and y-phycoerythrin
(3) Chlorophylld and chlorophyll b (4) Fucoxanthin and phycoerythrin​

Answer 1

Answer:

Porphyra : Phycoerythrin.

Dictyota : Fucoxanthin.

( Option 1 is the right answer )

Explanation:

Porphyra is a red algae i.e belongs to the class Rhodophyceae.

Red algae consists of many pigments especially r- phycoerythrin ( which gives it the characteristic red colour), r-phycocyanin, carotenoids,chlorophyll a and chlorophyll d etc.

Dictyota is a brown algae i.e belongs to class Pheophyceae.

Brown algae also has a lot of pigments in it majorly fucoxanthin( its amount decides its body colour, ranging from olive green to dark brown) along with chlorophyll a and chlorophyll c etc.

Hope this helps !!!