Class 11 · Biological Classification

Kingdom Protista: Members and Characteristics — NEET Biology

✅ Asked in NEET 2016
📖 NCERT Source

All single-celled eukaryotes are placed under Protista, but the boundaries of this kingdom are not well defined. What may be 'a photosynthetic protistan' to one biologist may be 'a plant' to another. In this book we include Chrysophytes, Dinoflagellates, Euglenoids, Slime moulds and Protozoans under Protista. Members of Protista are primarily aquatic. This kingdom forms a link with the others dealing with plants, animals and fungi. Being eukaryotes, the protistan cell body contains a well defined nucleus and other membrane-bound organelles. Some have flagella or cilia. Protists reproduce asexually and sexually by a process involving cell fusion and zygote formation.

NCERT Biology · Class 11 · Chapter 2 · Paragraph 17
How NTA Uses This Concept

NTA tests students' knowledge of which organisms belong to kingdom Protista, specifically that Chrysophytes, Dinoflagellates, Euglenoids, and Slime moulds are protistans. Students often confuse protistans with plants or animals because some are photosynthetic, leading to classification errors. The key trap: mistakenly classifying photosynthetic protists as plants. Remember that all protists are eukaryotic, primarily aquatic, and form a link between plants, animals, and fungi. They reproduce both asexually and sexually through cell fusion and zygote formation—this distinguishing feature confirms their protistan status regardless of whether they're photosynthetic.

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Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are included in the Kingdom: NEET 2016

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