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Quiz 3
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Q.1
Two morphologically similar populations are intersterile. They belong to ….. [ BHU 1994]
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a) One species
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b) Two biospecies
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c) Two sibling species
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d) None of the above
Explanation
Intersterile:incapable of producing offspring by interbreeding. Sibling species. Any of two or more related species that are morphologically nearly identical but are incapable of producing fertile hybrids Answer : (c)
Q.2
Mayr’s biological concept of species is mainly based on …[ BHU 1994]
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a) Morphological traits
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b) Reproductive isolation
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c) Modes of reproduction
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d) Morphology and reproduction
Explanation
Ernst Mayr defined a species as follows: "species are groups of interbreeding natural populations that are reproductively isolated from other such groups." Answer : (b)
Q.3
Alphanso and Neelam are … [ DPMT 2005]
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a) varieties of Mangoes
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b) Varieties of Apples
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c) Breeds of cow
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d) Race of Man
Explanation
Answer : (a)
Q.4
Energy flow and energy transformations of a living system follow
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a) Law of limiting factor
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b) Law of thermodynamics
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c) Liebig’s law of minimum
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d) Biogenetic law
Explanation
Law of limiting factor : States that growth is controlled not by the total amount of resources available, but by the scarcest resource. Liebig’s Law of minimum: states that “To occur and thrive in a given situation an organism must have essential materials which are necessary for growth and reproduction. Biogenetic law : The biogenetic law is a theory of development and evolution. Energy flow or energy transformation is governed by laws of thermodynamic Answer : (b)
Q.5
Which is not applicable to biological species concept? [ WB 2009]
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a) Hybridisation
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b) Reproductive isolation
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c) Natural selection
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d) Gene pool
Explanation
Hybridisation : the process of an animal or plant breeding with an individual of another species or variety. While species are groups of interbreeding natural populations that are reproductively isolated from other such groups Answer : (a)
Q.6
International code of ‘Biological Nomenclature’ is applicable to … .. [ DPMT1992]
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a) Viruses
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b) Plants
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c) Animals
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d) Both B and C
Explanation
Biological species, defined on the basis of gene pools and reproductive isolation in ‘Biological Nomenclature’. Such a concept is clearly not applicable to entities like viruses Thus‘Biological Nomenclature’ is applicable to Plants and Animal Answer : (d)
Q.7
Binomial nomenclature consists of two words … .. [ BHU 1999 ]
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a) Genus and species
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b) Order and family
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c) Family and genus
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d) Species and variety
Explanation
The binomial system of nomenclature is structured so that the scientific name of a plant consists of two names: (1) the genus or generic name, and (2) the specific epithet or species name. Answer : (a)
Q.8
Which is correct depiction of ICN? [ HPPMT 2005]
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a) Homo Sapiens
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b) Homo sapiens
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c) homo sapiens
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d) homo Sapiens
Explanation
International Code of Nomenclature The genus or generic name first letter in capital, and not second letter. Only ‘b’ option is correctly written. Answer : (b)
Q.9
BNHS is abbreviation of … .. [ DPMT 2005]
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a) Banaras Natural history Society
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b) Bombay Natural History Society
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c) Botanical North Himalayan Survey
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d) Biological Natural History Society
Explanation
BNHS is abbreviation of Bombay Natural History Society Answer : (b)
Q.10
Scientific name of plant family ends in … [ Wardha 2003 ]
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a) –ales
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b) – ata
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c) –sida
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d) –eae
Explanation
The standard ending for the name of a zoological subtribe is "-ina". In botany, the standard ending for the name of a botanical tribe is "-eae". Answer : (d)
Q.11
A binomial nomenclature has words/parts [ MPPMT 1997]
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a) Five
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b) Three
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c) Two
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d) One
Explanation
Binomial nomenclature has two parts- (I) Genus name (II)specific epithet Answer : (c)
Q.12
The number of species classified in ‘Species Plantarum’ is …. [ DPMT 2008]
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a) 3800
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b) 4000
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c) 5900
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d) 6000
Explanation
Species Plantarum contained descriptions of the thousands of plant species known to Linnaeus at the time. In the first edition, there were 5,940 names Answer : (c)
Q.13
Which of the following statements regarding universal rules of nomenclature is wrong … [kerala 2010]
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a) Both the words in a biological name when hand written are separately underlined
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b) The first word in a biological name represents the genus
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c) The first word denoting the genus starts with a capital letter.
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d) Biological names are generally Greek and written in italics.
Explanation
Rules for Binomial nomenclature The entire two-part name must be written in italics (or underlined when handwritten). The genus name is always written first. The genus name must be capitalized. The specific epithet is never capitalized. Answer : (d)
Q.14
Which is correct data of “Species Plantarum” authored by Carolus Linnaeus”
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a) 1st May 1753
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b) 1st January 1935
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c) 1st January 1856
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d) 1st May 1856
Explanation
Answer : (a)
Q.15
Energy transfers or transformations are never 100% efficient due to … [ Pb PMT 2005]
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a) Entropy
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b) Homeostasis
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c) Catabolism
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d) Anabolism
Explanation
Entropy is amount of the molecular disorder, or randomness, of a system . Thus part of energy is always utilized for randomness Answer : (a)
Q.16
The suffix –oideae is used for … [ DPMT 1992]
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a) Tribe
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b) Family
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c) Class
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d) Subfamily
Explanation
-oideae Used to form the taxonomic names of subfamilies of plants, algae and fungi. Answer : (d)
Q.17
Specimen used for original publication by the author is … .. [ AIIMS 1996]
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a) Holotype
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b) Isotype
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c) Syntype
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d) Lactotype
Explanation
Holotypes a single type specimen upon which the description and name of a new species is based. Or we can say Specimen used by author as nomenclature type Answer : (a)
Q.18
During cold, hairs are raised to near vertical position by … .. [ JKCMEE 2002]
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a) Hair follicles
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b) Arrector pili
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c) Capillary plexus
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d) Sebaceous glands
Explanation
The arrectorpili muscles are small muscles attached to hair follicles in mammals. Contraction of these muscles causes the hairs to stand on end, known colloquially as goose bumps A hair follicle is a mammalian skin organ that produces hair. Capillary plexus A structure in the form of a network, especially of nerves, blood vessels, or lymphatics: the cardiac plexus Sebaceous glands are microscopic exocrine glands in the skin that secrete an oily or waxy matter, called sebum, Answer : (b)
Q.19
The defining features of living beings is … [ AIIMS 2011]
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a) They digest their food
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b) They can regenerate
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c) They reproduce
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d) They respond to external stimuli
Explanation
Defining features :A property held by all members of a class of object that is so distinctive that it is sufficient to determine membership in that class Most obvious features of living being is to sense change in surrounding environment and or stimuli, because which it can obtain its food to get energy and grow , growth towards stimuli is shown by plants Answer : (d)
Q.20
Which of the following taxonomic ranks contain organism most similar to one another? [ AMU 2006]
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a) Genus
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b) Species
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c) Family
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d) Class
Explanation
Species is a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. Answer : (b)
Q.21
Binomial system of nomenclature for plants is effective form … [JIPMER 1997 ]
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a) 5.8.1771
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b) 1.5.1753
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c) 1.8.1758
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d) 6.7.1736
Explanation
The formal introduction of Binomial system of naming species is credited to Carl Linnaeus, effectively beginning with his work Species Plantarum in 1753. Answer : (b)
Q.22
Which of the following has correct specific epithet … .. [ Odisha 2012 ]
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a) Indica mangifera
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b) Leo Panthera
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c) Canis familiaris
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d) Ascris
Explanation
The second element in the Latin binomial name of a species, which follows the generic name and distinguishes the species from others in the same genus. Option ‘a’ name is written in reverse order it should be Mangiferaindica (Mango) Option ‘b’ name is written in reverse order it should be Pantheraleo (Lion) Option ‘d’ Ascaris is a genus of parasitic nematode worms Answer : (c)
Q.23
Identify the anabolic process from the following .. .. [ Odisha 2012 ]
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a) Photosynthesis
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b) Glycolysis
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c) Hydrolysis
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d) Respiration
Explanation
Anabolism is the set of metabolic pathways that construct molecules from smaller units. Anabolism is the building-up aspect hydrolysis is a chemical reaction in which water is used to break down the bonds of a particular substance. Glycolysis is the process of breaking down glucose. Respiration is a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances. Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities. This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water – hence the name photosynthesis. All the above except photosynthesis are process that involves break down of complex molecule into simpler, smaller units. Photosynthesis involves formation of complex molecules from smaller units. Answer : (a)
Q.24
Which nomenclature system is employed naming plants .. [ Orissa 2007]
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d) Polynomial
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a) Vernacular
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b) Binomial
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c) Monomial
Explanation
Answer : (b)
Q.25
Which is correct about energy changes in living cells? .. .. [ AMU 2001]
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a) First energy transfer, then energy transformation
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b) First energy transformation, then energy transfer
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c) Both occur discontinuously
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d) Both occur continuously
Explanation
Organisms break down the sugar to release its stored energy. The energy released from the breakdown of sugar is used by the cells to make another chemical that we call adenosine triphosphate, or simply abbreviated ATP. Thus energy transfer and the energy transformation occur continuously Answer : (d)
Q.26
Scientist who developed ‘key’ for identification of animals … [ MPPMT 1999 ]
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a) John Ray
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b) Goethe
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c) Cuvier
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d) Theophrastus
Explanation
The key is a device used by biologists for identifying unknown organisms on the basis of similarities and dissimilarities. Systematists rely on keys to help identify known organisms and determine whether they have discovered a new organism entirely Le Règne Animal (The Animal Kingdom) is the most famous work of the French naturalist Georges Cuvier. It sets out to describe the natural structure of the whole of the animal kingdom based on comparative anatomy, and its natural history. John Ray was a highly influential English naturalist and botanist whose contributions to taxonomy are considered groundbreaking and historic. He is also well-known in the world of botany for the establishment of species as the ultimate unit of taxonom Answer : (c)
Q.27
Specific epithet is …. [ Odisha 2012]
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a) First word in the scientific name of a species
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b) Second word in the scientific name of a species
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c) Both A and B
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d) None of the above
Explanation
The second element in the Latin binomial name of a species, which follows the generic name and distinguishes the species from others in the same genus Answer : (b)
Q.28
Which is not correct hierarchical order … [ AMU 2011]
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a) Class, order, family
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b) Family, order, class
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c) Phylum, order, family
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d) Class, family, genus
Explanation
Answer : (b)
Q.29
Which one is odd/not a category? [ MHTCET 2007]
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a) Species
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b) Class
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c) Phylum
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d) Glumaceae Malvaceae
Explanation
Malvaceae, or the mallows, is a family of flowering plants Except option ‘d’ all other are part of classification Answer : (d)
Q.30
Each unit of a category of classification can be called … [ Wardha 2003 ]
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a) Order
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b) Cohort
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c) Taxon
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d) Trophic level
Explanation
a taxon is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. It is a taxonomic group of any rank, such as a species, family, or class Answer : (c)
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