Answer:

In Phaeophyceae, laminarin is the stored food and major pigments are chlorophyll a and b. C) In Rhodophyceae, floridean starch is the stored food and the major pigments are chlorophyll a, d and phycoerythrin.

Question ⤵️

(Q) Difference between phaeophycaea and rhodophycaea .

Answer ⤵️

Rhodophycaea is on pic..⬆️

Characteristics of Class Phaeophyceae (Brown Algae):

➡️ Mostly marine, with unicellular or multicellular body.

➡️ Cells are eukaryotic, with special type of excretory granules in vesicles.

➡️ Chief pigments are chloroophyll a and c, beta carotene, lutein, fucoxanthin, dioanthin and violaxanthin.

➡️ Reserve food includes laminarin, mannitol and oils.

➡️ Sexual reproduction is isogamous, anisogamous or oogamous.

➡️ Zoospore formation is common.

➡️ Male gametes are flagellate.

➡️ Flagella are heterokont.

➡️ Life cycle is haplobiotic or diplobiotic, with alternation of generations.