Skip to content
LoginStart free

Class XI · Biology

Biological Classification: NEET MCQ practice

574 practice questions on Biological Classification, including 28 from past NEET papers, each with an explanation. Practise them chapter by chapter in the GyaanLoop app.

574

Practice questions

433

Easy

139

Medium

2

Hard

Get it on Google PlayPractise on the web →

What Biological Classification covers

Topics in the NEET (UG) 2026–27 syllabus for this chapter.

  • Five kingdom classification
  • Salient features and classification of Monera, Protista and Fungi into major groups
  • Lichens
  • Viruses and viroids

Past NEET questions on Biological Classification

Try each one, then open the answer and explanation.

Question 1 · NEET 2025

Each of the following characteristics represent a Kingdom proposed by Whittaker. Arrange the following in increasing order of complexity of body organization. A. Multicellular heterotrophs with cell wall made of chitin. B. Heterotrophs with tissue/organ/organ system level of body organization. C. Prokaryotes with cell wall made of polysaccharides and amino acids. D. Eukaryotic autotrophs with tissue/organ level of body organization. E. Eukaryotes with cellular body organization. Choose the correct answer from the options given below:

  1. A.A, C, E, B, D
  2. B.C, E, A, D, B
  3. C.A, C, E, D, B
  4. D.C, E, A, B, D
Show answer

Answer: B. C, E, A, D, B

Body organization complexity increases: prokaryotes (Monera) → unicellular eukaryotes (Protista) → multicellular without complex tissues → tissue/organ → organ systems. C = Monera, E = Protista, A = Fungi, D = Plantae, B = Animalia.

Question 2 · NEET 2024

Match List-I with List-II: List-I Organisms A. Euglenoid I. Parasitic B. Dinoflagellate II. Saprophytic C. Slime mould III. Photosynthetic D. Plasmodium IV. Switching between photosynthetic and heterotrophic mode Choose the correct answer from the options given below:

  1. A.A-III, B-IV, C-II, D-I
  2. B.A-IV, B-II, C-I, D-III
  3. C.A-IV, B-III, C-II, D-I
  4. D.A-IV, B-II, C-III, D-I
Show answer

Answer: C. A-IV, B-III, C-II, D-I

Euglenoids switch between modes (IV); Dinoflagellates are photosynthetic (III) but also heterotrophic; Slime moulds are saprophytic (II); Plasmodium is parasitic (I). True matches: A-IV, B-III, C-II, D-I.

Question 3 · NEET 2022

In the taxonomic categories which hierarchial arrangement in ascending order is correct in case of animals?

  1. A.Kingdom, Phylum, Class, Order, Family, Genus, Species
  2. B.Kingdom, Class, Phylum, Family, Order, Genus, Species
  3. C.Kingdom, Order, Class, Phylum, Family, Genus, Species
  4. D.Kingdom, Order, Phylum, Class, Family, Genus, Species
Show answer

Answer: A. Kingdom, Phylum, Class, Order, Family, Genus, Species

Standard biological taxonomy hierarchy is: Kingdom → Phylum → Class → Order → Family → Genus → Species. Check ascending order list.

Question 4 · NEET 2022

Herbarium, Botanical gardens, Museum, Zoological parks and Key are considered as-

  1. A.Environmental aids
  2. B.Pollution aids
  3. C.Taxonomical aids
  4. D.Trophic aids Ans.
Show answer

Answer: C. Taxonomical aids

Herbarium, botanical gardens, museums, and zoological parks are tools used to store and study specimens for identification and classification. Keys are used for species identification. All are fundamental resources in taxonomy.

Question 5 · NEET 2020

Which of the following is correct about viroids?

  1. A.They have free RNA without protein coat
  2. B.They have DNA with protein coat
  3. C.They have free DNA without protein coat
  4. D.They have RNA with protein coat
Show answer

Answer: A. They have free RNA without protein coat

Viroids are small circular RNA molecules that infect plants. They lack a protein coat, unlike viruses. Therefore, they consist solely of free RNA without any protein coat.

More Class XI Biology chapters

All Biology chapters →