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A chitinous cell wall is a key feature of organisms in which kingdom?

Answer and explanation

Correct answer: Fungi

Correct answer: B, Fungi. A cell wall containing chitin is a characteristic feature of fungi. To reason step by step, connect the wall material with the kingdom: fungal walls are mainly chitinous, plant walls are mainly cellulose, and many bacterial walls contain peptidoglycan. Therefore A is wrong because cellulose, not chitin, is the usual principal material in plant cell walls. B is correct. C is wrong because Moneran bacterial walls are generally associated with peptidoglycan, although wall composition can vary among organisms. D is wrong because Protista is a diverse group and does not have chitinous walls as its defining feature. Memory cue: chitin is associated with fungi and also with arthropod exoskeletons; do not confuse it with plant cellulose.

Related tags

FungiChitinCell WallKingdom ClassificationBiodiversityAnd Classification SystemsBiodiversity And Classification SystemsThe Living WorldBiology

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