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PROTISTS & FUNGI

This lecture delves into the evolutionarily ancient group of flagellated protists known as euglenoids. These free-living organisms inhabit freshwaters like stagnant ponds and lakes. Characterized by their long flagellum, contractile vacuole, and pellicle structure, euglenoids primarily display photoautotrophic capabilities, utilizing sunlight for energy. However, some euglenoids exhibit heterotrophic behavior, feeding on dissolved organic compounds, bacteria, and eukaryotes. This exploration highlights the ecological significance and diverse strategies of survival within this fascinating group of protists.

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PROTISTS & FUNGI

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  1. PROTISTS & FUNGI Lecture 2

  2. Evolutionarily Ancient Flagellates

  3. Euglenoids • Free-living, flagellated cells. • Found in fresh water, stagnant ponds and lakes. • Have a long flagellum, contractile vacuole, pellicle. • Contractile vacuole-expels excess water from the cell body. • Majority are photoautotrophs • Few are heterotrophs (feeding on dissolved organic compounds, bacteria/eukaryotes)

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