Five Kingdom Classification NEET 2026: Criteria and Answer

What is the correct answer to the Five Kingdom Classification NEET 2026 question?

Option 3: A, B, D and E only is correct for the five kingdom classification NEET 2026 question. Reproduction belongs to Whittaker’s main criteria; flagellum presence does not.

Identify which listed features belong to the main criteria behind R. H. Whittaker’s 1969 five-kingdom system:

• A: Cell structure.
• B: Body organisation.
• C: Whether a flagellum is present.
• D: Reproduction.
• E: Phylogenetic relationships.

The supplied options are:

1. A, B, C, D and E.
2. B, C and D only.
3. A, B, D and E only.
4. A, B and E only.

This is a single-correct Biology question from Diversity in Living World, tagged medium on this question bank’s scale. Its expected solving time is 30 seconds, a planning estimate for recalling the criteria and matching the statements, not a measured student average.

What are Whittaker’s five main classification criteria?

The supplied official solution starts by recalling the complete framework: cell structure, body organisation, mode of nutrition, reproduction and phylogenetic relationships. Recall that list before inspecting the option combinations. Judge each feature against the named criteria, not just its biological relevance.

Each criterion covers a different aspect of the organism:

• Cell structure: Cellular features, including whether cells are prokaryotic or eukaryotic.
• Body organisation: How the organism’s body is organised, such as unicellular or multicellular organisation.
• Mode of nutrition: How the organism obtains its nutrition.
• Reproduction: The reproductive processes it uses.
• Phylogenetic relationships: Its evolutionary relationships with other organisms.

Mode of nutrition remains a main criterion even though it is absent from statements A–E. There are five criteria in the complete framework but only four valid statements in this question.

Select the valid features offered. The question does not require every criterion in Whittaker’s framework to appear among its statements.

How do you check A–E and eliminate the wrong options?

Accept A, B, D and E; reject C. Each accepted statement appears explicitly in the official solution’s criterion list. Check each statement against that list before looking for the matching option.

• A: Cell structure. Include. It is explicitly listed as a main criterion.
• B: Body organisation. Include. It is explicitly listed.
• C: Flagellum presence. Exclude. Presence of a flagellum is not a separately named main criterion.
• D: Reproduction. Include. It is explicitly listed and must not be dropped.
• E: Phylogenetic relationships. Include. Evolutionary relationships are explicitly included.

The accepted set is:

Now compare the supplied combinations:

• Option 1 is wrong: It includes C.
• Option 2 is wrong: It includes C and omits A and E.
• Option 3 is correct: It matches the complete accepted set.
• Option 4 is wrong: It omits D, reproduction.

Eliminating the flagellum statement is not enough: option 4 also excludes C but drops a valid criterion. You must retain every valid statement.

Use this sequence: recall the framework, check each statement, then match the complete accepted set. This gives option 3.

Why does treating every useful biological feature as a criterion lead to option 1?

Accepting flagellum presence adds C to the valid set and produces option 1: A, B, C, D and E. The error is treating every biologically meaningful feature as one of Whittaker’s principal classification criteria.

A flagellum can help describe or identify an organism without being a separately named main criterion in this framework. Excluding C does not mean flagella are irrelevant to all classification, or that flagellated organisms cannot belong to the five kingdoms.

Use this corrective check:

Is this feature explicitly part of the framework being asked about, rather than merely useful for describing an organism?

If the marking scheme awards 4 marks for a correct answer and minus 1 mark for an incorrect answer, the score difference between selecting option 3 and option 1 is:

Can you apply the same distinction to three related classification questions?

Use the named criteria to identify what each question tests: the complete framework, cell structure or mode of nutrition. These are original practice questions from the same classification topic, not additional verified NEET PYQs.

Which main Whittaker criterion was absent from the original A–E list?

1. Mode of nutrition.
2. Flagellum presence.
3. Habitat.
4. Body colour.

Answer: Option 1, mode of nutrition. It belongs to the complete five-criterion framework even though the original question did not offer it. An omitted criterion remains part of the framework; it simply cannot be selected from that particular list.

Which kingdom contains prokaryotic organisms in the five-kingdom system?

1. Monera.
2. Protista.
3. Fungi.
4. Plantae.

Answer: Option 1, Monera. Prokaryotic organisms lack a membrane-bound nucleus. This decision uses cell structure, one of Whittaker’s main criteria, rather than habitat or movement.

Which comparison correctly distinguishes the characteristic nutrition of fungi and green plants?

1. Fungi absorb organic nutrients while green plants photosynthesise.
2. Fungi photosynthesise while green plants absorb organic nutrients.
3. Both characteristically photosynthesise.
4. Both characteristically ingest solid food.

Answer: Option 1. Fungi absorb organic nutrients, often after digestion outside their bodies. Green plants characteristically make organic food through photosynthesis. This distinction uses mode of nutrition, the criterion missing from the original A–E list.

Before your next classification MCQ, cover the solution and recall all five: cell structure, body organisation, mode of nutrition, reproduction and phylogenetic relationships.

Next step: the past-paper archive on NEET JEEnius AI and search past NEET papers by year, subject or chapter, each with a worked solution (100 free searches a month).

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