Question
Mention six characteristic features of dinoflagellates.
✓
Answer
- They are mostly marine.
- They are unicellular and eukaryotic.
- They appear yellow, brown, blue, green or red, depending on the main pigments present in them.
- The cell wall has stiff cellulosic plates on the S outer surface.
- Most of them have two flagella-one lies longitudinally and the other transversely in afurrow between the cell wall plates
- Some red dinoflagellate like Gonyaulax undergoes such a rapid multiplication that it causes red tide in the ocean and the toxin secreted by it kills aquatic animals.
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