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#cellulose plates

4 public questions tagged with this topic.

A microscopic aquatic eukaryote has two flagella, stiff cellulose plates and photosynthetic pigments. Which observation

Most dinoflagellates possess two differently oriented flagella: one lies longitudinally and the other transversely in a furrow between the cellulose plates. Euglenoids instead have a flexible pellicle and two flagella described as one short and one long.

Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Protista - Chrysophytes and Dinoflagellates

A marine photosynthetic protist possesses stiff cellulose plates and two flagella, one longitudinal and one transverse.

These features identify a dinoflagellate. Red dinoflagellates such as Gonyaulax may multiply so rapidly that the sea appears red. Toxins released by such large populations may kill marine animals, including fishes.

Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Protista - Chrysophytes and Dinoflagellates