Selected Qs - The Living World - NCERT Exemplar Converted to MCQs

1. What does ICZN stand for?

1.	International Code of Zoological Nomenclature
2.	International Committee of Zoological Names
3.	International Center for Zoological Nomenclature
4.	International Code of Zoogeographical Nomenclature

2. A couplet in taxonomic key means:

1.	Two related species
2.	Two contrasting characters
3.	Two taxonomic categories
4.	Two scientific names

3. What is a Monograph?

1.	A single page description of a species
2.	A detailed account of any one genus or family
3.	A book with one author
4.	A simple classification key

4. Amoeba multiplies by mitotic cell division. This phenomenon is:

1.	Growth only
2.	Reproduction only
3.	Both growth and reproduction
4.	Neither growth nor reproduction

5. The largest botanical garden in the world is located in:
1. India
2. England
3. Brazil
4. China

6. A ball of snow when rolled over snow increases in mass, volume and size. This is:

1.	Similar to growth in living organisms
2.	Not comparable to growth in living organisms
3.	A type of reproduction
4.	An example of metabolism

7. In a habitat with 20 plant species and 20 animal species, this should be called:

1.	Diversity only
2.	Biodiversity only
3.	Both diversity and biodiversity
4.	Neither diversity nor biodiversity

8. Brinjal and potato belong to the same genus Solanum but are different species because they have:

1.	Different chromosome numbers
2.	Different morphological characteristics
3.	Different habitat requirements
4.	All of the above

9. According to binomial nomenclature, the scientific name of mango (Mangifera indica) has:

1.	Genus name starting with small letter
2.	Species name starting with capital letter
3.	Both words in italics or underlined
4.	Three words in the name

10. The term 'metabolism' refers to:

1.	Only catabolic reactions
2.	Only anabolic reactions
3.	Sum of all chemical reactions in an organism
4.	Only energy-releasing reactions

11. Carolus Linnaeus is known as the father of:
1. Biology
2. Taxonomy
3. Botany
4. Zoology

12. The hierarchical arrangement of taxonomic categories is called:
1. Systematics
2. Taxonomy
3. Nomenclature
4. Taxonomic hierarchy

13. Which of the following is NOT a defining characteristic of living organisms?
1. Intrinsic Growth
2. Metabolism
3. Ability to make sound
4. Consciousness

14. The scientific name Homo sapiens follows the rule that:

1.	First word is species name
2.	Second word is genus name
3.	First word is genus name
4.	Both words represent species

15. Taxonomic studies are useful in:
1. Agriculture only
2. Forestry only
3. Industry only
4. Agriculture, forestry, and industry

16. The basic unit of classification is:
1. Genus
2. Species
3. Family
4. Order

17. As we go higher in taxonomic hierarchy from species to kingdom:

1.	Number of individuals increases, shared characters decrease
2.	Number of individuals decreases, shared characters increase
3.	Both number of individuals and shared characters increase
4.	Both number of individuals and shared characters decrease

18. International Code for Botanical Nomenclature is abbreviated as:

1.	ICZN	2.	ICBN
3.	ICPN	4.	ICVN

19. The diversity of life forms, their organization, and their relationships is the essence of:
1. Morphology
2. Anatomy
3. Systematics
4. Physiology

20. A person in coma is considered:
1. Dead
2. Living
3. Neither living nor dead
4. Partially living

21. Properties of tissues that are not present in individual cells demonstrate:

1.	Cellular organization
2.	Emergent properties
3.	Genetic variation
4.	Metabolic diversity

22. The number of described species on Earth is approximately:

1.	0.5-1 million	2.	1.7-1.8 million
3.	5-10 million	4.	50-100 million

23. Scientific names are preferred over common names because they:

1.	Are easier to pronounce
2.	Are universally accepted and avoid confusion
3.	Are shorter than common names
4.	Can be written in any language

24. Linnaeus is considered as Father of Taxonomy. Who among the following botanists are also known for their contribution to plant taxonomy?

1.	Bentham and Hooker	2.	Darwin and Wallace
3.	Mendel and Morgan	4.	Watson and Crick

25. Which is the largest botanical garden in the world?
1. Kew Gardens, London
2. Brooklyn Botanic Garden, New York
3. Indian Botanic Garden, Kolkata
4. Singapore Botanic Gardens

26. The International Code of Botanical Nomenclature (ICBN) provides hierarchy for plant classification. Which of the following represents the correct suffix for 'Family' in plant taxonomy?
1. -ales
2. -aceae
3. -idae
4. -phyta

27. A plant species shows morphological variations in response to altitudinal gradient, but when grown under similar conditions, variations disappear. These variants are called:
1. Ecotypes
2. Phenotypes
3. Genotypes
4. Ecads

28. What information should a preserved plant material on herbarium sheet provide for taxonomical studies?

1.	Local name and date of collection only
2.	Scientific name, locality, date, collector's name and field notes
3.	Only morphological features
4.	Only the habitat description

29. Eichhornia crassipes is called an exotic species, while Rauwolfia serpentina is endemic to India. What do these terms refer to?

1.	Exotic = native species, Endemic = foreign species
2.	Exotic = foreign species, Endemic = native species
3.	Both refer to native species
4.	Both refer to foreign species

30. Brinjal (Solanum melongena) and potato (Solanum tuberosum) belong to same genus but different species. What defines them as separate species?

1.	Different morphology only
2.	Different habitat only
3.	Inability to interbreed and produce fertile offspring
4.	Different chromosome number only

31. Which of the following represents the correct scientific name format?

1.	Brassica Campestris linn
2.	brassica campestris Linn
3.	Brassica campestris Linn
4.	BRASSICA CAMPESTRIS LINN

32. In the binomial name Brassica campestris Linn, what does 'Linn' represent?

1.	The genus name
2.	The species name
3.	The author's name who first described the species
4.	The family name

33. What are taxonomical aids?

1.	Only herbaria and museums
2.	Tools and techniques that help in identification, classification and study of organisms
3.	Only botanical gardens
4.	Only taxonomic keys

34. Which of the following is NOT a function of herbaria?

1.	Preservation of plant specimens
2.	Reference for taxonomic studies
3.	Live cultivation of plants
4.	Documentation of plant diversity

35. Botanical gardens serve which primary purpose in biodiversity conservation?

1.	Ex-situ conservation only
2.	In-situ conservation only
3.	Both ex-situ conservation and education
4.	Only research purposes

36. In taxonomic hierarchy, what happens to the number of individuals as we move from species to kingdom?
1. Increases
2. Decreases
3. Remains constant
4. First increases then decreases

37. What happens to shared characteristics as we go up the taxonomical hierarchy?

1.	Number of shared characteristics increases
2.	Number of shared characteristics decreases
3.	Shared characteristics remain same
4.	No pattern is observed

38. A taxonomic key is used for:

1.	Opening locked specimens
2.	Identification of organisms using contrasting characters
3.	Classification of fossils only
4.	Naming new species

39. Which statement about taxonomic keys is correct?

1.	Keys are based on similarities only
2.	Keys use couplets with contrasting characters
3.	Keys can only be used for plants
4.	Keys are only pictorial

40. Metabolism is a defining feature of living organisms. Which statement about isolated metabolic reactions is correct?

1.	They represent complete living systems
2.	They are living reactions but not living things
3.	They cannot occur outside living cells
4.	They are indicators of death

41. Metabolic reactions in vitro (outside living systems)

1.	Prove that test tubes are alive
2.	Show that metabolism alone defines life
3.	Demonstrate that isolated reactions are not living things despite being life processes
4.	Are impossible to perform

42. Which of the following best describes the relationship between "whole moong dal" and "broken moong dal" in terms of growth?

1.	Both can grow into new plants
2.	Only whole moong dal can grow, broken cannot
3.	Only broken moong dal can grow
4.	Neither can grow as they are processed

43. Based on growth and respiration parameters, how would you classify viable whole moong dal?
1. Non-living
2. Living (dormant life)
3. Dead
4. Inorganic matter

44. Which statement about tissue properties is correct?

1.	All tissue properties are sum of individual cell properties
2.	Some tissue properties emerge from cell organization and are not present in individual cells
3.	Tissues have no properties different from cells
4.	Individual cells have all tissue properties

45. An example of emergent property in tissues that is not found in individual cells is:

1.	Respiration
2.	Growth
3.	Pumping action of heart muscle
4.	Protein synthesis

46. The coordination seen in tissue function demonstrates:

1.	Individual cell capabilities only
2.	Emergent properties arising from cellular organization
3.	Random cell behavior
4.	Absence of cellular control

47. Which example best illustrates emergent properties in biological organization?

1.	Single muscle cell contraction
2.	Coordinated muscle tissue contraction for movement
3.	Individual cell metabolism
4.	Single cell division

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