NCERT Class 11 Chapter 1 Biology The Living World MCQ

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1. The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for

A. reproduction

B. growth and movement

C. responsiveness to touch.

D. interaction with the environment and progressive evolution

2. Which one of the following animals is correctly matched with its particular named taxonomic category ?

A. Tiger - tigris, the species

B. Cuttle fish - mollusca, a class

C. Humans - primata, the family

D. Housefly - musca, an order

3. Choose correct scientific name of mango

A. Mangifera indica Linn

B. Mangifera indica Hook

C. Mangifera indica L

D. Mangifera Indica

4. Arrange the following taxonomic categories in increasing number of common characteristics w.r.t. plant mango A. Dicotyledonae B. Polymoniales C. Mangifera D. Angiospermae E. Anacardiaceae

A. (a)

B. (b)

C. (c)

D. (d)

5. The common characteristics between brinjal and wheat can be observed maximum at the level of their.

A. Division

B. Kingdom

C. Phylum

D. None of these

6. Study of number of chromosomes for resolving difficulties in classification is used in

A. Cytotaxonomy

B. Biochemical taxonomy

C. Morphotaxonomy

D. Chemotaxonomy

7. Most names in biological nomenclature of living organisms are taken from which language?

A. Latin

B. French

C. Hindi

D. German

8. The main objective of plant taxonomy is

A. all of these

B. to provide Latin 'scientific' names for every group of plants in the world

C. to provide a method for identification and nomenclature

D. to study the world's flora

9. Which one of the following has least similar characters?

A. Class

B. Genus

C. Species

D. Family

10. The ascending or descending arrangement of taxonomic categories is called as

A. hierarchy

B. classification

C. taxonomy

D. key

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11. Animal taxonomists have named the animals according to

A. International code for Zoological Nomenclature

B. International classification for Zoological Nomenclature

C. Indian code for Zoology Nomenclature

D. International class for Zoology Nomenclature

12. Which of the following statement is not true?

A. When the external temperature is warm, the superficial blood vessels constrict to prevent loss of body heat

B. Homeostasis is a fundamental property of life

C. Human beings are endothermic

D. None of these

13. The usage of binomial names, for plant species was accepted by all after the publication of the work by

A. Linnaeus

B. Darwin

C. Hooker

D. None of these

14. A taxon with reference to the classification of living organisms can be defined as

A. a group of anyone rank of organisms

B. a group of organisms based on chromosome numbers

C. a group of similar species

D. a group of similar genera

15. Species are considered as

A. The lowest units of classification

B. Artificial concept of human mind which cannot be defined in absolute terms

C. Real basic units of classification

D. Real units of classification devised by taxonomists

16. Linneaus system of classification is

A. Artificial

B. Progressive

C. Natural

D. Phylogenetic

17. The book systema naturae was written by

A. Carolus Von Linnaeus

B. Hutchinson

C. Engler and Prantl

D. Bentham & Hooker

18. “Ordines Anomali” of Bentham and Hooker includes :

A. A few orders which could not be placed satisfactory in the classification

B. Plants described in the literature but which Bentham and Hooker did not see in original

C. Plants represented only in fossil state

D. Seed plants showing abnormal forms of growth and development

19. What is true for individuals of same species?

A. Interbreeding

B. Live in same habitat

C. Live in same niche

D. None of these

20. Two similar holotypes are called

A. Isotypes

B. Syntypes

C. Neotypes

D. Mesotypes

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21. Employment of hereditary principles in the improvement of human race is

A. Euthenics

B. Eugenics

C. Euphenics

D. Ethnology

22. Pedology is science of

A. earth

B. soil

C. diseases

D. pollution

23. Study of fossils is

A. Palaeontology

B. Herpetology

C. Saurology

D. Organic evolution

24. Glycogen is a polymer of

A. galactose

B. glucose

C. fructose

D. sucrose

25. Adenine is

A. purine

B. pyrimidine

C. nucleoside

D. nucleotide