MCQs on Biological Classification

Biological classification is the process of grouping living organisms on the basis of their similarites and dissimilarities. It is also known as taxonomy. The organisms are classified into five kingdoms – Kingdom Monera, Protista, Fungi, Plantae and Animalia.

Biological classification are of three types – artificial, natural and phylogenetic. The biological classification has made it possible to identify the organisms based on their characteristics.

Biological Classification MCQs

1. Which of the following organisms can be found in extreme saline conditions?

  1. Eubacteria
  2. Archaebacteria
  3. Cyanobacteria
  4. Mycobacteria

2. Linnaeus used which kingdom of classification?

  1. Artificial system
  2. Natural system
  3. Phylogenetic system
  4. Asexual system

3. Smallest taxon of classification is

  1. Kingdom
  2. Family
  3. Variety
  4. Species

4. In which kingdom are Archaea and Nitrogen-fixing organisms classified?

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

5. Bentham and Hooker gave which system of classification?

  1. Numerical
  2. Phylogenetic
  3. Artificial
  4. Natural

6. What is the main basis of classification in the five kingdom system?

  1. Structure of nucleus
  2. Structure of cell wall
  3. Asexual Reproduction
  4. Mode of Nutrition

Also Read: Five Kingdom Classification

7. Which one of the following is not applied for fungi?

  1. They are eukaryotic.
  2. They are heterotrophic.
  3. They are both unicellular and multicellular.
  4. They possess a purely cellulosic cell wall.

8. African Sleeping Sickness is caused by

  1. Trypanozoma cruzi
  2. T. tangela
  3. T. rhodesiense
  4. T. gambiense

9. Linnaeus evolved a system of nomenclature called

  1. Vernacular
  2. Monomial
  3. Polynomial
  4. Binomial

10. What is a taxon?

  1. A group of related families
  2. A type of living organisms
  3. A group of related species
  4. A group of any ranking

11. Phylogenetic classification is based on

  1. Overall similarities
  2. Habit of plants
  3. Common evolutionary descendants
  4. All of these

12. Static concept of species was proposed by

  1. Darwin
  2. Theophrastus
  3. Linnaeus
  4. De Condolle

Also Read: Basis of Biological Classification

13. The protists have which of the following?

  1. Free nucleic acid aggregates
  2. Nucleoprotein in direct contact with the rest of the cell substance
  3. Membrane bound nucleoproteins within the cytoplasm
  4. Nucleoproteins condensed together in loose mass

14. Genes of Tobacco Mosaic Virus are

  1. Double stranded RNA
  2. Single stranded RNA
  3. Double stranded DNA
  4. Proteinaceous

15. Blue green algae belongs to which group?

  1. Protista
  2. Prokaryotes
  3. Fungi
  4. Bryophytes

16. Who wrote the book “Genera Plantarum”?

  1. Bessey
  2. Benthem and Hooker
  3. Linnaeus
  4. Hutchinson

17. T.O. Diener discovered

  1. Bacteriophage
  2. Infectious protein
  3. Free infectious DNA
  4. Free infectious RNA

18. ICBN stands for

  1. International Code of Botanical Nomenclature
  2. Indian Code of Botanical Nomenclature
  3. Indian Congress of Biological names
  4. Indian Congress of Botanical Nomenclature

Also Read: Taxonomy

 

Answer Key

1- b

2- a

3- d

4- c

5- d

6- b

7- d

8- d

9- d

10- d

11- c

12- c

13- c

14- b

15- b

16- b

17- d

18- a

19-

20-

You may also be interested in

Important Question for Class 11

Important Questions for Class 12

Biology MCQs

Biology

Important Questions on Biological Classification