CBSE Class 11 Biology The Living World MCQs Set E

Question. 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

Answer: A

Question. Which of the following organisms is not correctly matched with its particular ?
(a) Human beings – Sapiens, species
(b) Lion – Panthera, genus
(c) Cats – Felidae, genus
(d) Datura – Solanaceae, family

Answer: C

Question. Binomial nomenclature means
(a) one name given by two scientists.
(b) one scientific name consisting of a generic and specific epithet.
(c) two names, one latinized, other of a person.
(d) two names of same plant.

Answer: B

Question. Which one of the following is the first step in taxonomy ?
(a) Naming
(b) Description
(c) Identification
(d) Classification

Answer: C

Question. Keys are generally _______ in nature.
(a) physical
(b) chemical
(c) analytical
(d) qualitative

Answer: C

Question. The order generally ends with
(a) ales
(b) aceae
(c) eae
(d) none of the options

Answer: A

Question. Dicotyledons like mango, brinjal and monocotyledons like Wheat and Rice are placed under a taxonomic category known as
(a) Phylum – Angiospermae
(b) Division – Angiospermae
(c) Class – Angiospermae
(d) Sereis – Polypetalae

Answer: B

Question. Which of the following statements regarding growth is incorrect?
(a) In animals growth is seen up to a certain age.
(b) Increase in body mass is considered as growth.
(c) Growth by cell division occurs continuously throughout their life span in animals.
(d) Increase in mass and number of individuals is the characteristics feature of animal growth.

Answer: C

Question. Which of the following statement(s) is/are not correct ?
(i) Reproduction is the production of progeny possessing features dissimilar to their parents.
(ii) The fungi, the filamentous algae, the protonema of mosses, all multiply by budding.
(iii) Many organisms like mules, sterile worker bees do not reproduce.
(iv) Reproduction is not an all-inclusive defining characteristic of living organisms.
(a) Only (i)
(b) Both (i) and (ii)
(c) Both (ii) and (iv)
(d) All of the options

Answer: B

Question. Refer the botanical name of wheat “Triticum aestivum” and identify the statement which correctly describes it.
(a) The second word belongs to genus and starts with a small letter.
(b) Both the words “Triticum aestivum” denote the specific epithet.
(c) The first word Triticum denotes the genus which starts with a capital letter.
(d) The first word Triticum denotes the specific epithet while the second word denotes the genus.

Answer: C

Question. Which of the following statements are correct about herbarium?
(a) It is a store house of collected plant specimens that are dried and preserved on sheets.
(b) Herbarium sheets contain information about date and place of collection, names, family, collector’s name, etc.
(c) It serves as quick referral systems in taxonomical studies.
(d) All of the options

Answer: D

Question. Growth in living organisms occurs by
(a) division of cells.
(b) increase in biomass.
(c) accumulation of materrial by external agency.
(d) both (a) and (b).

Answer: D

Question. Herbarium is a
(a) garden where medicinal plants are grown.
(b) garden where herbaceous plants are grown.
(c) dry garden.
(d) chemical to kill plants.

Answer: C

Question. Taxon is a
(a) unit of classification.
(b) species.
(c) highest rank of classification.
(d) group of closely related organisms.

Answer: D

Question. The keys are based on contrasting characters generally in a pair called _______.
(a) flora
(b) couplet
(c) both (a) and
(b) (d) manuals

Answer: B

Question. Which of the following statements are not correct ?
(i) Lower the taxon, more are the characteristics that the members within the taxon share.
(ii) Order is the assemblage of genera which exhibit a few similar characters.
(iii) Cat and dog are included in the same family Felidae.
(iv) Binomial nomenclature was introduced by Carolus Linnaeus.
(a) (i), (ii) and (iii)
(b) (ii), (iii) and (iv)
(c) (i) and (iv)
(d) (ii) and (iii)

Answer: D

Question. Which of the following is the correct sequence of the various steps of Herbarium formation?
(1) Drying (2) Poisoning (3) Collection
(4) Labelling (5) Mounting (6) Deposition
(7) Stitching
(a) 3, 1, 2, 5, 7, 4, 6
(b) 3, 2, 4, 5, 6, 7, 1
(c) 3, 1, 2, 5, 7, 6, 4
(d) 3, 1, 2, 7, 5, 6, 4

Answer: A

Question. Which of the following is less general in characters as compared to genus?
(a) Species
(b) Division
(c) Class
(d) Family

Answer: A

Question. Each category of taxonomic hierarchy refers to as a unit of ______.
(a) systematic
(b) identification
(c) nomenclature
(d) classification

Answer: D

Question. Which two points are known as the twin characteristics of growth?
(i) Increase in mass
(ii) Differentiation
(iii) Increase in number of individuals
(iv) Response to stimuli
(a) (i) and (ii)
(b) (i) and (iv)
(c) (ii) and (iii)
(d) (i) and (iii)

Answer: D

Question. Which of the following statements is incorrect?
(a) The scientific name for humans is Homo sapiens.
(b) Organisms placed in the same genus are least closely related.
(c) Moving from species to kingdom, more different species are included in each higher category.
(d) Species that are in the same genus share very specific characteristics.

Answer: B

Question. Which of the following is not a characteristic of life?
(a) Reproduction
(b) Complex chemical organization
(c) Adaptation to environmental changes
(d) Differentiation from cells to tissues

Answer: D

Question. Which of the following statement(s) is/are correct for Metabolism ?
(a) It is the sum total of all physical reactions taking place inside a living system.
(b) All plants, animals, fungi and microbes exhibit metabolism.
(c) Isolated metabolic reactions in-vitro are not living but are living reactions.
(d) All of the options

Answer: B

Question. Which of the following statement(s) is/are not correct ?
(i) Genus comprises a group of related species which has more characters in common in comparison to species of other genera.
(ii) Three different genera such as Solanum, Datura and Petunia are placed in the family malvaceae.
(iii) In case of plants, classes with a few similar characters are assigned to a higher category called phylum.
(a) Both (i) and (ii)
(b) Only (iii)
(c) Both (ii) and (iii)
(d) All of the options

Answer: C

Question. Two plants can be conclusively said to belong to the same species if they
(a) have same number of chromosomes.
(b) can reproduce freely with each other and form seeds.
(c) have more than 90 per cent similar genes.
(d) look similar and possess identical secondary metabolites.

Answer: B

Question. The most important feature of all living systems is to
(a) utilize oxygen to generate energy.
(b) replicate the genetic information.
(c) produce gametes.
(d) utilize solar energy for metabolic activities.

Answer: B

Question. Genus represents
(a) an individual plant or animal.
(b) a collection of plants or animals.
(c) group of closely related species of plants or animals.
(d) none of the options

Answer: C

Question. Couplet represents the choice made between two opposite options which results in
(a) rejection of both the option.
(b) acceptance of both the option.
(c) either acceptance or rejection of both the option.
(d) acceptance of only one and rejection of the other.

Answer: D

Question. Which one of the taxonomic aids can give comprehensive account of complete compiled information of any one genus or family at a particular time?
(a) Taxonomic key
(b) Flora
(c) Herbarium
(d) Monograph

Answer: D

Question. Which of the following statement(s) is/are correct ?
(i) Classification is the providing of standardize names to the organisms such that a particular organism known by the same all over the world.
(ii) Taxonomy is the correct description of an organism and to recognition in its scientific name.
(iii) The system of naming with two components (binomial nomenclature) is proposed by Carolus Linneaus.
(iv) Zoological names are based on International Code for Zoological Nomenclature (ICZN).
(a) Only (i)
(b) Both (iii) and (iv)
(c) Only (iv)
(d) All of the options

Answer: B

Question. Taxonomic hierarchy refers to
(a) step-wise arrangement of all categories for classification of plants and animals.
(b) a group of senior taxonomists who decide the nomenclature of plants and animals.
(c) a list of botanists or zoologists who have worked on taxonomy of a species or group.
(d) classification of a species based on fossil record.

Answer: A

Question. In angiosperm, characters of flowers are used in classification because
(a) flowers are attractive.
(b) flowers are large.
(c) character of flowers are conserved.
(d) none of the options

Answer: C

Question. Which of the following shows the correct example of taxonomic category – Genus?
(a) Potato, tomato and brinjal belong to Solanum.
(b) Monkey, gorilla and gibbon are placed in Mammalia.
(c) Solanum, Petunia, and Datura are placed in Solanacea.
(d) Mangifera indica, Solanum tuberosum, and Panthera leo.

Answer: A

Question. One of the most important functions of botanical gardens is that
(a) they provide a beautiful area for recreation.
(b) one can observe tropical plants there.
(c) they allow ex-situ conservation of germ plasm.
(d) they provide the natural habitat for wildlife.

Answer: C

Assertion/Reason Type Questions

In the following questions, a statement of Assertion is followed by a statement of Reason.
(a) If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
(b) If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
(c) If Assertion is true but Reason is false.
(d) If both Assertion and Reason are false.

Question. Assertion : Taxon and category are different things.
Reason : Category shows hierarchical classification.

Answer: A

Question. Assertion : Botanical Gardens are ex-situ conservation strategy of plants.
Reason : National botanical Garden is situated at Howrah.

Answer: C

Question. Assertion: Information given on the label of herbarium sheets does not include family.
Reason: Families are characterized on the basis of reproductive features of plant species only.

Answer: D

Question. Assertion : Two plants A and B are treated as two taxonomic species.
Reason : Both A and B are different in correlated characters.

Answer: A

Question. Assertion : Panthera is a polytypic genera.
Reason : Panthera has specific epithets like leo, tigris and pardus.

Answer: A