Five Kingdom Classification MCQs

Q1. Which kingdom is described: 'prokaryotic; no true nucleus (bacteria)'?

• A.Monera
• B.Fungi
• C.Plantae
• D.Animalia

Answer: A. Monera

Q2. Which kingdom is described: 'unicellular eukaryotes (Amoeba, Paramecium)'?

• A.Protista
• B.Plantae
• C.Animalia
• D.Cyanobacteria (Monera)

Answer: A. Protista

Going back to the NCERT chapter, The taxonomic hierarchy is Kingdom -> Phylum -> Class -> Order -> Family -> Genus -> Species, narrowing at each step; match the defining feature(s) named in the stem against this ladder => the level/group at which they hold first is the answer; hence the correct rank = Protista. That fits the listed correct option directly - Correct. Quickly on the wrong ones: option B) 'Plantae' doesn't hold - Plantae: multicellular autotrophs; cellulose cell wall; option C) 'Animalia' fails since Animalia: multicellular heterotrophs; no cell wall. Hence the answer is A) Protista.

Q3. Which kingdom is described: 'eukaryotic, saprophytic; chitin cell wall'?

• A.Fungi
• B.Animalia
• C.Cyanobacteria (Monera)
• D.Algae (Protista/Plantae)

Answer: A. Fungi

NCERT fact (biology, chapter 'Patterns in Life: Diversity and Classification'): The taxonomic hierarchy is Kingdom -> Phylum -> Class -> Order -> Family -> Genus -> Species, narrowing at each step; match the defining feature(s) named in the stem against this ladder => the level/group at which they hold first is the answer; hence the correct rank = Fungi. Why option A fits - Correct. Distractor analysis: option B) 'Animalia' is incorrect: Animalia: multicellular heterotrophs; no cell wall; option C) 'Cyanobacteria (Monera)' is incorrect: Cyanobacteria (Monera): photosynthetic prokaryotes. Final answer - A) Fungi.