CUSAT CAT 2017 Question Paper Botany

BOTANY
(Final)

1. The most abundant natural polymer found in plant cell walls is?

(A) Pectin (B) Cellulose
(C) Chitin (D) Lignin

2. Lichen is a

(A) Symbiotic organism (B) Asymbitotic organism
(C) Obligate parasite (D) Pteridophyte

3. A symbiotic association between fungi and the roots of vascular plants is called as

(A) Mycorrhiza (B) Mycelium
(C) Mycoparasite (D) Coleorhiza

4. Study of fossil soils is

(A) Paleopedology (B) Paleoecology
(C) Paleobotany (D) Agronomy

5. The study of fossilized pollen grains and spores is termed as

(A) Paleobotany (B) Palynology
(C) Photography (D) Videography

6. Which is the living fossil?

(A) Welwitschia mirabilis (B) Sciadopitys verticillata
(C) Retrophyllum rospigliosii (D) Ginkgo biloba

7. The characteristic feature of gymnosperms is

(A) naked seed (B) without seed
(C) covered seed (D) no photosynthesis

8. Phycology is the study of

(A) Fungi (B) Algae
(C) Bryotphytes (D) Angiosperms

9. Which one is produced by baker’s yeast with the fermentation of sugar?

(A) Methanol (B) Butanol
(C) Ethanol (D) Acetone

2

10. Mushroom is

(A) an algae (B) a fungus
(C) a parasite (D) a bryophyte

11. Chorophyta includes

(A) Photosynthetic eukaryotes
(B) Non photosynthetic eukaryotes
(C) Photosynthetic prokaryotes
(D) Non photosynthetic prokaryotes

12. Vessels are present in all of the following plants except

(A) Pinus (B) Rose
(C) Neem (D) Mango tree

13. Which of the following water conducting element is considered as most advanced?

(A) Tracheids (B) Multiple vessels
(C) Annular tracheids (D) Simple vessels

14. Which of the following are the examples of phloem fibres?

(A) Jute (B) Hemp
(C) Flax (D) All of the above

15. The waxy substance associated with the wall of cork cells is

(A) Cutin (B) Lignin
(C) Hemicellulose (D) Suberin

16. A simple mechanical tissue devoid of lignin is

(A) Parenchyma (B) Sclerenchyma
(C) Collenchyma (D) Chlorenchyma

17. Abnormal secondary growth is found in

(A) Dracaena (B) Triticum
(C) Helianthus (D) Cucurbita

18. External protective tissues of plants are

(A) Cork and cortex (B) Cortex and epidermis
(C) Epidermis and cork (D) Pericycle and cortex

3

19. The bark of a tree comprises

(A) all the tissues outside the cork cambium
(B) all the tissues outside the vascular cambium
(C) only the cork
(D) tissues inside the cork cambium

20. Cork cells are impermeable to water because of the presence of

(A) Lignin (B) Cutin
(C) Suberin (D) Pectin

21. Fusion of male gamete with polar nuclei of embryosac is known as

(A) Pollination (B) Embryogeny
(C) Triple fusion (D) Double fertilization

22. The entry of pollen tube into the ovule through micropyle is called

(A) Isogamy (B) Anisogamy
(C) Porogamy (D) Chalazogamy

23. Development of embryo from gametophyte without the intervention of gamete is
known as

(A) Apospory (B) Apogamy
(C) Apomixis (D) Aposporogamy

24. The exine of mature pollen grain is composed chiefly of

(A) Lipids (B) Cellulose
(C) Pectocellulose (D) Sporopollenin

25. During fertilization, the pollen tube discharges its contents in the

(A) Central cell (B) Egg
(C) Microphyle (D) Synergid

26. The Commelinaceae family is commonly known as the

(A) Spiderwort family (B) Aster family
(C) Grass family (D) Lily family

27. Binomials with identical genus name and specific epithet are called

(A) Homonym (B) Tautonym
(C) Basionym (D) Synonym

4

28. The newly collected specimen which is used as a substitute, when the original type
material is missing in a herbarium, is designated as

(A) Lectotype (B) Holotype
(C) Neotype (D) Isotype

29. Natural system of classification of plants differs from artificial system of
classification in

(A) taking into account only one vegetative character
(B) taking into account only one floral character
(C) taking into account all the similarities between plants
(D) All of the above

30. Which one of the following chemicals is a DNA intercalator?

(A) 5-Bromouracil (B) Ethyl methane sulfonate
(C) Acridine orange (D) UV

31. Which one of the following neurotransmitters is secreted by the pre-ganglionic
neurons of sympathetic nervous system?

(A) Epinephrine (B) Acetylcholine
(C) Dopamine (D) Norepinephrine

32. Which of the following statements about evolution is true?

(A) Evolution is the product of natural selection
(B) Evolution is not goal-oriented
(C) Evolution won’t evolve Prokaryotes
(D) Both (A) and (B)

33. Predominant interactions between phospholipids that stabilize a biological membrane
include

(A) hydrogen bonds and covalent interactions
(B) van der Waal and ionic interactions
(C) hydrophobic interactions and hydrogen bonding
(D) covalent and hydrophobic interactions

34. Entry of enveloped viruses into its host cells is mediated by

(A) only endocytosis
(B) both endocytosis and phagocytosis
(C) both endocytosis and membrane fusion
(D) only pinocytosis

5

35. Which of the following National parks has the highest density of tigers among
protected areas in the world?

(A) Jim Corbett (B) Kaziranga
(C) Keoladeo Ghana (D) Manas

36. Excess oxygen consumed after a vigorous exercise is to

(A) pump out lactic acid from muscle
(B) increase the concentration of lactic acid in muscle
(C) reduce dissolved carbon dioxide in blood
(D) make ATP for gluconeogenesis

37. Which of the following mutagens is most likely to result in a single amino acid
change in a gene product?

(A) Acridine orange
(B) X-rays
(C) Ethylmethane sulphonate (EMS)
(D) Ethidium bromide (EtBr)

38. Green revolution occurred during

(A) 1960 (B) 1940
(C) 1950 (D) 1930

39. Selection of homozygous plant is termed as

(A) Pure line selection (B) Mass selection
(C) Clonal selection (D) Both (A) and (C)

40. A plant bearing both male and female flowers is said to be

(A) Dioecious (B) Monoecious
(C) Polygamous (D) Asexual

41. Wind pollination is also known as

(A) Anemophyly (B) Entomophyly
(C) Zoophyly (D) Hydrophyly

42. Actual petrified remains of ancient plants and animals or impressions left by them in
rocks are called

(A) Models (B) Traces
(C) Fossils (D) Images

6

43. Adjustment of individuals to their environment by means of special structures or of
function is termed as

(A) Mutation (B) Heredity
(C) Variation (D) Adaptation

44. A hybrid is always

(A) Heterozygous (B) Homozygous
(C) Often homozygous (D) Both (A) and (B)

45. One of the following is not a double membranous structure

(A) Mitochondrion (B) Vacuole
(C) Chloroplast (D) Nucleus

46. Mendel formulated some laws which are known as

(A) Laws of germplasm (B) Laws of origin of species
(C) Laws of recapitulation (D) Laws of inheritance

47. The alleles are

(A) a pair of genes governing a specific character such as tallness or dwarfness
(B) multiple forms of genes
(C) genes governing eye characters
(D) genes present in allosomes

48. An organism with two identical alleles for a given trait is

(A) homozygous (B) segregating
(C) dominant (D) a hermaphrodite

49. The resemblance of individuals to their progenitors is called

(A) Heredity (B) Genetics
(C) Evolution (D) Epigenetics

50. Maximum biodiversity can be seen in

(A) Tropical rain forest (B) Temperate forest
(C) Savanna (D) Alpine forest

51. The most important adaptation of mangrove plants is

(A) Vivipary (B) Thick cuticle
(C) Thick Bark (D) Thick leaves

7

52. Tendency of pollutants to become concentrated in successive trophic levels is known
as

(A) Biomagnification (B) Biorhythm
(C) Bioremediation (D) Biopiracy

53. More than half of the Earth’s flora and fauna are found in

(A) Tundra (B) Tropical rain forests
(C) Grasslands (D) Chapparal

54. Two biodiversity hot-spots in India

(A) Eastern Himalayas and Western Ghats
(B) Western Himalayas and Western Ghats
(C) Eastern Himalayas and Eastern Ghats
(D) Western Himalayas and Eastern Ghats

55. Eutrophication is

(A) an improved water quality status of lakes
(B) the result of accumulation of plant nutrients in water bodies
(C) a process in the carbon cycle
(D) a water purification technique

56. The largest reservoir of nitrogen in our planet is

(A) Ocean (B) Atmosphere
(C) Biosphere (D) Fossil fuels

57. Father of medicine is

(A) Aristotle (B) Dioscorides
(C) Hippocrates (D) Galen

58. Flower bud of drug showing medicinal importance is

(A) Saffron (B) Clove
(C) Fig (D) Caraway

59. Vinca rosea belongs to the family

(A) Rubiaceae (B) Solanaceae
(C) Apocyanaceae (D) Erythroxylaceae

60. The important chemical constituent of rauwolfia is

(A) Reserpine (B) Resercinnamine
(C) Ajamalicine (D) Desperidine

8

61. One of the following is the source of rubber

(A) Hevea brasilensis (B) Tectona grandis
(C) Cedrus depdara (D) Michelia chamaca

62. Saffron is produced from

(A) Roots of Indigofera (B) Petals of Rosa
(C) Stamens of Hibiscus (D) Style and Sigma of Crocus

63. ‘Holy basil’ is the synonym for the following drug producing herb

(A) Alpinia officinarum (B) Allium sativum
(C) Nardostachys jatamonum (D) Ocium sanctum

64. Cross pollination is essential in the following type of vegetables

(A) Monoecious (B) Dioecious
(C) Gynoecious (D) Perigynous

65. Maturation of anthers and stigma at the same time refers to

(A) Homogamy (B) Chasmogamy
(C) Cleistogamy (D) Dichogamy

66. In tissue culture medium, the embroyids formed from pollen grains is due to

(A) Cellular totipotency (B) Organogenesis
(C) Double fertilization (D) Test tube culture

67. Indian Institute of Horticulture Research (IIHR) is established at

(A) Bangalore (B) New Delhi
(C) Lucknow (D) Jodhpur

68. Biostatistics is also called as

(A) Biometry (B) Bio-numerology
(C) Biometeorology (D) Algebra

69. The standard deviation is the square of

(A) standard error (SD) (B) mode
(C) variance (D) regression

70. Interference RNA was discovered by

(A) Cohen and Boyer (B) Fire and Mello
(C) Yonath and Ramakrishnan (D) Holley and Khorana

9

71. Which one among the following plants is not a GMO?

(A) Bt cotton (B) Golden rice
(C) Bt Brinjal (D) Pomato

72. The first transgenic plant was

(A) Pea (B) Tobacco
(C) Flax (D) Cotton

73. Which one among the following bacteria has been generally used in genetic
engineering research?

(A) Bacillus (B) E. coli
(C) Pseudomonas (D) Agrobacterium

74. Which one among the following is used as an anionic detergent in SDS-PAGE?

(A) Cetyl trimethylammonium bromide (CTAB)
(B) Sodium chloride (NaCl)
(C) Ethylenediaminetetraacetic acid (EDTA)
(D) Sodium dodecyl sulphate (SDS)

75. Which base in RNA is replaced by uracil?

(A) Thymidine (B) Guanine
(C) Cytosine (D) Adenine

76. Which one among the following enzymes uses ATP to add a phosphate group to the
substrate?

(A) Isomerase (B) Kinase
(C) Aldolase (D) Enolase

77. Sucrose is composed of

(A) Fructose and maltose (B) Glucose and galactose
(C) Fructose and galactose (D) Fructose and glucose

78. Cell without cell wall is termed as

(A) Apoplast (B) Protoplast
(C) Symplast (D) Tonoplast

79. Plant and animal cell possess

(A) Cell walls (B) Mitochondria
(C) Central vacuoles (D) Chloroplast

10

80. Mycorrhizae are symbiotic associations between

(A) algae and fungi (B) bacteria and fungi
(C) bacteria and root (D) root and fungi

81. Which technique is used to introduce genes into dicots?

(A) Ti plasmid infection (B) Microinjection
(C) Particle acceleration (D) Electroporation

82. Which one among the following auxins is a naturally occurring form in plants?

(A) Naphthalenacetic acid (NAA)
(B) 2,4-dichlorophenoxyacetic acid (2,4-D)
(C) Indole-3-acetic acid (IAA)
(D) Picloram

83. Black rust of wheat is caused by

(A) Puccina recondita (B) P.graminis
(C) P.striiformis (D) Alternaria solani

84. Coenocytic mycelium occurs in the members of

(A) Ascomycetae (B) Basidiomycetae
(C) Deuteromycetae (D) Phycomycetae

85. Which of the following species of Agaricus is poisonous?

(A) A campestris (B) A bisporus
(C) A xanthodermus (D) A rodmani

86. The female reproductive structure in many lichens is called as

(A) Carpogonium (B) Oogonium
(C) Ascogonium (D) Ascomata

87. Bacteria in which flagella are found all over the body wall are known as

(A) Gram positive (B) Gram negative
(C) Atrichous (D) Peritrichous

88. The group of plants referred as ‘amphibians’ of plant kingdom is

(A) Bryophytes (B) Mosses
(C) Liverworts (D) Hornworts

11

89. Scientific name of red wood tree is

(A) Cedrus (B) Pinus
(C) Dalbergia (D) Sequoia

90. Scientific name of pigeon pea is

(A) Lens culinaris (B) Cajanus cajan
(C) Pisum arvense (D) Pisum sativum

91. The function of the root cap is

(A) to absorb nutrients
(B) storage of end products
(C) protection of root tip and control of geotropic movement
(D) for stylish look

92. In Bougainvillea large coloured structures are

(A) Bracts (B) Stamens
(C) Petals (D) Sepals

93. The phenomenon of polyembryony was first observed in

(A) Mangifera (B) Cucurbita
(C) Citrus (D) Euphorbia

94. The first and great plant taxonomist is

(A) Hooker (B) Engler
(C) Linnaeus (D) Aristotle

95. The National Botanical Research Institute (NBRI) is located at

(A) Delhi (B) Dehradun
(C) Lucknow (D) Darjeeling

96. The botanical name of cauliflower is

(A) Brassica oleracea var. botrytis
(B) Brassica oleracea var. capitata
(C) Brassica oleracea var. gongylodes
(D) Brassica campestris

97. Which one among the following trees yields valuable timber?

(A) Acacia arabica (B) Dalbergia sisso
(C) Mangifera indica (D) Prosopis specigera

12

98. Which one among the following is the largest family of the plant kingdom?

(A) Compositae (B) Leguminosae
(C) Gramineae (D) Orchidaceae

99. The Indian rubber plant belongs to the family

(A) Euphorbiaceae (B) Moraceae
(C) Asclepiadaceae (D) Sapotaceae

100. From which part of Cinchona, quinine is extracted?

(A) Roots (B) Seeds
(C) Bark (D) Fruits

101. Which one among the following crops occupies higher cultivation acreage in India?

(A) Jowar (B) Wheat
(C) Bajra (D) Rice

102. The characteristic smell in garlic is due to

(A) an alkaloid (B) a symbiotic virus
(C) diallyl disulphide (D) a corticosteroid

103. Fenny is distilled from

(A) Vitis vinifera (B) Juniperus communis
(C) Borassus flabellifer (D) Ancardium occidentale

104. Cilia are produced by

(A) Centrioles (B) Peroxisomes
(C) Dictyosomes (D) Golgi body

105. Auxins are

(A) Phytohormones (B) Proteins
(C) Porphyrins (D) Cell osmophores

106. Thigmotropism is the response of plants to

(A) Gravity (B) Water
(C) Light (D) Touch

107. The term synecology refers to the study of

(A) Plant community (B) Individual organism
(C) Environment (D) Plant-animal interactions

13

108. Building blocks of the nucleic acids are

(A) Amino acids (B) Nucleoproteins
(C) Nucleotides (D) Nucleosides

109. Chromosome of prokaryotes is composed of

(A) DNA (B) Protein
(C) RNA (D) DNA, RNA and proteins

110. The nucleolus is composed of

(A) DNA, RNA and protein
(B) DNA and RNA only
(C) DNA and protein only
(D) Nucleic acids, proteins and phospholipids

111. Which one among the following plants is a millet?

(A) Triticum aestivum (B) Zea mays
(C) Oryza sativa (D) Eleusine coracana

112. Angiosperms are

(A) Open seeded plants (B) Closed seeded plants
(C) Seedless plants (D) Aquatic plants

113. When the calyx and corolla are combined, it is called

(A) Epicalyx (B) Leaf sheath
(C) Bracteole (D) Perianth

114. Botanical name of wheat is

(A) Triticum (B) Oryza
(C) Bambusa (D) Ricinus

115. Radish is a

(A) Bulb (B) Modified root
(C) Tuber (D) Stem

116. Solanum tuberosum is

(A) Tomato (B) Potato
(C) Banana (D) Mango

14

117. The collection of dried plant specimens is called

(A) Vivarium (B) Aquarium
(C) Terrarium (D) Herbarium

118. The smallest gymnosperm is a species of

(A) Ephedra (B) Zamia
(C) Cycas (D) Gnetum

119. Eugenia caryophyllus is the botanical name of

(A) Clove (B) Eucalyptus
(C) Coriander (D) Cardamom

120. Krebs cycle occurs in

(A) Cytoplasm (B) Ribosomes
(C) Mitochondria (D) Chloroplasts

121. Agar is extracted from

(A) Blue-green algae (B) Brown algae
(C) Green algae (D) Red algae

122. Datura belongs to the family

(A) Compositae (B) Cruciferae
(C) Liliaceae (D) Solanaceae

123. Acid rain is due to

(A) Sulphur dioxide pollution (B) Carbon monoxide pollution
(C) Pesticide pollution (D) Dust particles

124. Viruses contain

(A) Only DNA (B) Only RNA
(C) Either DNA or RNA (D) Both DNA and RNA

125. Where is the Sugarcane Breeding Institute located?

(A) Lucknow (B) Mysore
(C) Coimbatore (D) Ludhiana

126. The drug ‘Belladonna’ is obtained from

(A) Atropa (B) Rawolfia
(C) Solanum (D) Capsicum

15

127. Pine and fir are abundant in

(A) Tropical forests (B) Coniferous forests
(C) Temperate forests (D) Polar forests

128. Air pollution effects on plants are mostly found on

(A) Leaves (B) Flowers
(C) Stems (D) Roots

129. As water pollution increases in a stream, the values of BOD and COD change in the
following manner

(A) BOD decreases and COD increases
(B) BOD increases and COD decreases
(C) Both decrease
(D) Both increase

130. Which part of the coconut produces coir?

(A) Seed coat (B) Pericarp
(C) Mesocarp (D) Epicarp

131. A dihybrid ratio according to Mendelian genetics is

(A) 1:1:1:1 (B) 3:1
(C) 9:3:3:1 (D) 9:5:1:1

132. Cotton fibres are made up of

(A) Cellulose (B) Starch
(C) Lignin (D) Protein

133. The embryo in sunflower has

(A) No cotyledon (B) One cotyledon
(C) Two cotyledons (D) Many cotyledons

134. When a plant of F-1 generation is crossed with homozygous dominant plants, it is
termed as

(A) Simple cross (B) Test cross
(C) Backcross (D) Special cross

135. The main function of lysosomes is

(A) Digestion (B) Replication
(C) Translation (D) Translocation

16

136. Mutations are caused due to exposure to

(A) Radioactive mutagens (B) Chemical mutagens
(C) Radiation mutagens (D) Carcinogens

137. Algae found growing attached to soil substratum are called as

(A) Epilithic (B) benthos
(C) Epipelic (D) Sciophytic

138. Tuberculosis is caused due to the infection by

(A) Clostridium (B) Mycobacterium
(C) Salmonella (D) Treponema

139. Pneumatophores are usually present in

(A) Mangrove plants (B) Xerophytes
(C) Hydrophytes (D) Epiphytes

140. Storage leaves are founds in

(A) Trapa (B) Allium
(C) Triticum (D) Maize

141. The fruit of grasses is usually a

(A) Capsule (B) Achene
(C) Nut (D) Caryopsis

142. Which one among the following is a prokaryote?

(A) Spirogyra (B) Rhizopus
(C) Escherichia (D) Amoeba

143. Mitochondria are absent in

(A) Yeast (B) Fungi
(C) Bacteria (D) Green algae

144. Wilting occurs in plants when

(A) Epidermis is peeled off (B) Phloem is blocked
(C) Xylem is blocked (D) Pith is removed

145. Which one among the following is an insectivorous plant?

(A) Cuscuta (B) Orobranche
(C) Drosera (D) Rafflesia

17

146. The flowering responses of plants can be changed by

(A) Induced mutations (B) Photoperiodic treatment
(C) Injection of enzymes (D) Somatic hybridisation

147. RNA is absent in

(A) Plasma membrane (B) Cytoplasm
(C) Chromosome (D) Ribosome

148. Genes control

(A) Heredity but not protein synthesis
(B) Protein synthesis but not heredity
(C) Protein synthesis and heredity
(D) Biochemical reactions of enzyme

149. Mycorrhiza is

(A) a fungus parasitizing root system of higher plants
(B) an association of rhizobium with the roots of leguminous plants
(C) a symbiotic association of plant leaves and certain fungi
(D) an association of algae and fungi

150. Crossing over involves

(A) Deletion of chromosomes
(B) Addition of chromosomes
(C) Exchange of genetic materials
(D) Duplication of chromosomes

***