Question

Discuss briefly the characteristics of Pyrrophyta class of algae.

03 Feb 2026
Answer :
Word Count : 241
Pyrrophyta, commonly known as dinoflagellates, are a distinctive class of unicellular, mostly marine algae that play an important role in aquatic ecosystems. Most members are microscopic and free-living, though a few are freshwater forms or symbiotic, such as those associated with corals. The cells are typically biflagellate, possessing two unequal flagella: one transverse flagellum that lies in a groove called the cingulum and encircles the cell, and one longitudinal flagellum located in the sulcus. This unique arrangement produces a characteristic whirling or spinning movement during locomotion. The cell covering
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