1. Most of the swollen part of fleshy root is comprised by hypocotyl in:

(A)Radish


Carrot


(C)Turnip


Beet


2. Buttress roots are found in:

(A)Almond


Simbal


(C)Pipal


All of the above


3. Leaf roots are present in:

(A)Eichhornia


Jussiaea


(C)Bryophyllum


Salvinia


4. The example of leaf opposed stem tendrils is:

Cucurbita


Grape-vine


Passiflora


Antigonon
5. The stiff and pointed structures in Bougainvillea are called

(A)Thorns


Spines


(C)Prickles


Bristles


6. The type of compound leaves in Coriander is:

(A)Unipinnate


Bipinnate


(C)Tripinnate


Decompound


7. In Australian Acacia, the leaves are modified into:

(A)Cladodes


Phylloclades


(C)Phyllodes


Tendrils


8. In Nepenthes, the pitcher is a modification of:

(A)Leaf base


Petiole


(C)Lamina


Stipules


9. Raceme of Racemes is also termed as:

(A)Umbel


Spadix


(C)Panicle


Corymb


10. The inflorescence in Euphorbia species is:

(A)Verticillaster


Cyathium


(C)Cymose head


Capitulum


11. The maturation of anthers and stigma of a flower at different times is:

(A)Dicliny


Dichogamy


(C)Prepotency


Herkogamy


12. The fruit in Banana is:

(A)Eucarpic


Pseudocarpic


(C)Parthenocarpic


Pseudocarpic and Parthenocarpic


13. Testa of seed is inseparably fused with the pericarp in:

(A)Pea


(B)Gram


(D)Castor



(C)Maize


14. The cocci are found in the fruits of:

Fennel


(B)Althaea


(D)Castor


Acer
15. The fruit of Litchi is:

(A)Succulent and single seeded


(B)Succulent and many seeded


(D)Dry and many seeded


(C)Dry and single seeded


16. Aleurone layer in Maize grain is a part of:

(A)Pericarp


(B)Endosperm


(D)All of the above


(C)Scutellum


17. The type of seed germination in Maize is:

(A)Epigeal


(B)Hypogeal


(D)Partially Epigeal and mainly Hypogeal


(C)Mainly epigeal and partially Hypogeal


18. Censer mechanism for dispersal of seeds occur in:

Poppy


(B)Calotropis


(D)Albizzia


Sonchus
19. Autochory takes place in:

(A)Pea


(B)Geranium


(D)All of the above


(C)Balsam


20. The 'Father of Taxonomy' is:

(A)Aristotle


(B)Lamarck


(D)Watson and Crick


(C)Linnaeus


21. Protocells are:

(A)Autotrophic


(B)Epiphytic


(D)Saprophytic


(C)Heterotrophic


22. Pangenesis theory was proposed by:

(A)Weismann


(B)Charles Darwin


(D)Hudo De Vries


(C)Lamarck

23. 'Ontogeny repeats phylogeny' is known by:

(A)Biogenetic law


Natural selection theory


(C)Law of Heredity


Mutation theory


24. Plants were divided into herbs, shrubs and trees by:

(A)Lamarck


Darwin


(C)Theophrastus


Linnaeus


25. Reappearance of ancestral characters in an organism is termed as:

(A)Vestigeal


Atavism


(C)Homologous


Analogous


26. Cytoplasmic connections through the two neighboring cells are called:

(A)Endoplasmic reticulum


Golgibodies


(C)Plasmodesmata


Mitochondria


27. Temperature of cell remains constant due to the presence of:

(A)Water


Proteins


(C)Carbohydrates


Lipids


28. Contractile vacuoles play a role in:

(A)Reproduction


Streaming movements


(C)Excretion


Water absorption


29. Coenocytic cells are:

(A)Uninucleate


Binucleate


(C)Multinucleate


None of the above


30. Which of the following contain chromatophores?

(A)Bacteria


Algae


(C)Fungi


All of the above


31. Autolysis occurs through

(A)Lysosomes


Vacuoles


(C)Nucleus


Centrioles


32. Nucleolous reappear during

(A)Prophase


Metaphase


(C)Anaphase


Telophase


33. Synapsis occurs during:

Leptotene


Zygotene


(C)Pachytene


Diplotene


34. Molecules of lipid and proteins of the plasma membrane are bound together by:

(A)Electrostatic force


Centripetal force


(C)Centrifugal force


Van der Waal's force


35. Balbiani rings are found in:

(A)Somatic chromosomes


Lampbrush chromosomes


(C)Polytene chromosomes


Sat chromosomes


36. The cells having thickenings on their walls which are bordering the intercellular spaces constitute:

Angular Collenchyma


Lamellar Collenchyma


Lacunate Collenchyma


Plate Collenchyma
37. The term 'Hadrome' is related to:

Phloem


Xylem


Endodermis


Epidermis
38. The nuclear enzymes are composed of:

Nucleoprotamines


Non-histone proteins


Nucleohistone proteins


Histomines

39. Chromosomes not associated with the sex are known as:

(A)Autosomes


Y-chromosomes


(C)Polytene chromosomes


Lampbrush chromosomes


40. Shape of meristematic cells in the vascular cambium is:

(A)Isodiametric


Polygonal


(C)Irregular


Fusiform


41. The term 'Plastochron' is used to describe:

(A)Coloration of plastocyanin


(B)Widening of apical meristem


(C)Narrowing of apical meristem


(D)Period between the initiation of two successive leaves


42. Root cap is formed from the in Dicotyledons.

(A)Root meristem


Innermost initial cells


(C)Median initial cells


Terminal initial cells


43. Vascular bundles scattered in the pith are referred to as:

(A)Concentric


Medullary


(C)Cortical


Radial


44. Gene that does not determine a character but simply modifies it, is termed as:

(A)Pleiotropic gene


Penetrance gene


(C)Holandrice gene


Supplementary gene


45. Causal organism for the 'Wart Disease of Potato' is:

(A)Olpidium


Physoderma


(C)Synchitrium


Urophlyctis


46. The disease 'Ergot of Rye' is caused by

(A)Claviceps



Fusarium


(C)Neurospora


Cystopus


47. The bacteria without flagella are known as:

(A)Monotrichous


Lophotrichous


(C)Atrichous


Petritrichous


48. Elaters are found in

(A)Rhynia


Riccia


(C)Funaria


Pellia


49. The type of pollen liberation known as 'Sulphur Shower' is observed in:

(A)Cycas


Pinus


(C)Araucaria


Agathis


50. Aril is found in the ovule of:

(A)Pinus


Cedrus


(C)Cycas


Taxus


51. In Cabbage, the leaves are arranged.

(A)Involutely


Arcinately


(C)Plicately


Crumpledly


52. Transportation of hormones in plant is:

(A)Apex to base


Base to apex


(C)Uniform distribution


All of the above


53. According to Relay Pump Hypothesis, water rises in the stem due to activity of cells of

(A)Medullary rays


Inner cortex


(C)Pericycle


Endodermis


54. Guard cells in some Monocots may be:

(A)Dome shaped


Dumbbell shaped


(C)Spathulate


Wedge shaped


55. Enzymatic interconversion of starch-sugar was thought for the opening of stomata due to discovery of enzyme:

(A)Phosphorylase


Phosphoglucomuatse


(C)Hexokinase


Phosphatase


56. According to the active Transport Hypothesis, besides organic acids, the turgidity of guard cells is controlled by movement of following ions:

Cl-





Cl-


Cl­


57. Which element is left as such when chlorophyll is burnt?

(A)Iron


Manganese


(C)Magnesium


Molybdenum


58. Rapid deterioration of root and shoot occurs due to the deficiency of:

(A)Calcium


Phosphorus


(C)Carbon


Molybdenum


59. When Hydrilla is removed from aquatic habitat to be planted in soil:

(A)The plant will dry up and die


(B)The plant would grow though with a stunted growth


(C)The number of lacunae reduce and a thick cuticle is developed


start producing collenchyma and sclerenchyma cells for mechanical support


60. Kreb's cycle start with the formation of a six carbon compound by reaction between:

(A)Malic acid and acetyl coenzyme A


(B)Succinic acid and pyruvic acid


(C)Fumaric acid and pyruvic acid


(D)Oxaloacetic acid and acetyl coenzyme A


61. Seedless fruits can be produced by treating the unpollinated flowers with:

(A)Auxins


Gibberellins


(C)Cytokinins


Lanolin


62. The primary precursor of IAA is

(A)Phenylalanine


Tyrosine


(C)Tryptophan


Leucine


63. Elongation of a genetically dwarf plant is possible with the application of:

(A)Kinetin


GA3


(C)IAA






64. Idea that the genes control production of an enzyme was first given by:

(A)T.H. Morgan


E.I. Tatum


Garrod


A. Kornberg


65. The plane of cell wall formation in a dividing cell is determined by:

(A)Microfilaments


Microtubules


(C)Endoplasmic reticulum


Golgi apparatus


66. The shape of nuclear spindle is:

(A)Cylindrical


Conical


(C)Elliptical


Discoid


67. The number of linkage groups in a plant correspond to:

(A)Number of chiasmata


Basic number of chromosomes


(C)Haploid number of chromosomes


Diploid number of chromosomes


68. 'Balausta' fruit is present in:

(A)Pomegranate


Bael


(C)Orange


Cucumber


69. The pericarp is not differentiated into epicarp, mesocarp and endocarp in:

Berries


Pomes


Drupes


All of the above
70. Dichlamydeous flowers have:

Calyx


Both Calyx and Corolla


Corolla


Both Androecium and Gynoecium
71. Involucral bracts are present in:

Nut


Spadix


Capitulum


Catkin

72. Triticale is an example of hybridization.

Intervarietal


Interspecific


Intravarietal


Intergeneric
73. Pollinia are present in the flower of:

Sonchus


Calotropis


Ageratum


Antirrhinum
74. Montreal protocol is associated with:

Protection of forest cover and wildlife


Bio-fuel reserves


Protection of ozone layer


Green house gases

75. Sandalwood cultivation is mainly confined to:

(A)Kerala


Orissa


(C)Tamil Nadu


Karnataka


76. The drug aconite is obtained from the of Aconitum heterophyllum.

(A)Seeds


Stem


(C)Roots


Leaves


77. A hypothesis suggesting, 'high energy state consists of a proton-concentration gradient and an electric field across the functional membrane' is:

(A)Phosphorylation Hypothesis


Chemiosmotic Hypothesis


(C)Van Neil's Hypothesis


None of the above


78. Amla (Emblica officinalis) belongs to the family:

(A)Fabaceae


Euphorbiaceae


(C)Malvaceae


Verbenaceae


79. Katha is extracted from of khair (Acacia catechu).

(A)Bark


Leaves


(C)Heartwood


Sapwood


80. Indian State leading in pineapple cultivation is:

(A)Assam


Bihar


(C)Maharashtra


Orissa


81. The free energy change upon addition of a unit quantity, specifically a gram molecular weight of a substance is called the:

(A)Solute potential


Standard free energy


(C)Chemical potential


Gibbs free energy


82. The amount of energy required to raise the temperature of a unit mass of a substance by 1oC is 85. If the stigma gets pollinated by pollens of the same flower, phenomenon is:
called its:

Latent heat


Specific heat


Heat of vaporization


Endothermic energy
83. Protandry is a condition of flower in which:

Anthers mature first


Carpel mature first


Both mature at the same time


Anthers and stigmas lie at different levels
84. In gymnosperms, the endosperm is:

Haploid


Triploid


Diploid


Tetraploid



85. If the stigma gets pollinated by pollens of the same flower, phenomenon is:

(A)Autogamy


Allogamy


(C)Xenogamy


Geitonogamy


86. Inorganic materials are stored by seeds in the form of:

(A)Pectin


Volutin


(C)Cellulose


Phytin


87. Production of auxins is by light.

(A)Inhibited


Promoted


(C)Not altered


None of the above


88. Which of the followings can be used as biofertilizers?

(A)Algae and bacteria


Mycological VAmycorrhizae


(C)Azolla


All of the above


89. Plantlets developed from anther cultures are:

(A)Haploids


Diploids


(C)Triploids


Polyploids


90. Which of the followings is also known as levulose or fruit sugar?

(A)Glucose


Fructose


(C)Mannose


Maltose


91. Cells lacking turgor pressure entirely are referred to as:

(A)Dead cells


Inactive cells


(C)Flaccid cells


Immotile cells


92. The most harmful ionizing radiation is:

(A)a-particles


ß-particles


(C).-rays


All of the above


93. The value of water potential for pure water is:

(A)106 dynes/sq. cm.


108 dynes/sq. cm.


0. 987 atmosphere


Zero


94. Diffusion of water into endodermis takes place through:

(A)Casparian strips



Passage cells


(C)Both and


Special pores


95. Root cap is absent in:

(A)Zea mays


Helianthus


(C)Nymphaea


Azolla


96. In hydrophytes buoyancy is provided due to:

(A)Collenchymas


Aerenchyma


(C)Sclerenchyma


Chlorenchyma


97. In aerial roots of epiphytic orchids water is retained in:

(A)Velamen tissue


Prosenchyma tissue


(C)Vascular tissue


Chlorenchyma tissue


98. Fleshy leaf like structures in Opuntia is modification of:

(A)Root


Flower


(C)Petiole


Stem


99. Which of the followings is a secretory structure?

(A)Idioblast


Prosenchyma


(C)Phyllode


Phylloclade


100. Carnivory habit is observed in:

Sonchus


Manihot


Euphorbia


Drosera
101. The breathing roots are present in:

(A)Avicenia


Cassia


(C)Alocassia


Colocasia


102. The smallest flowering plant in the world is:

(A)Wolfia microscopic


Lemna gibba


(C)Cyperus tricep


Brassica niger


103. Which plant is called as fire of the forest?

(A)Erythrina indica


Bombax malabaricum


(C)Butea monosperma


Woodfordia floribunda


104. Which of the following fruit is a drupe?

(A)Banana


Papaya


(C)Fig


Mango


105. Which of the following is a false fruit?

(A)Papaya


Pineapple


(C)Cashew nut


Areca nut


106. Which of the following fruit is a berry?

(A)Coconut


Almond


(C)Tomato


Areca nut


107. Which of the following is best known nitrogen fixing bacteria?

(A)Rhizoctonium


Rhizobium


(C)Arizin


Cocus


108. Loss of water in the form of droplets is:

(A)Desiccation


Imbibition


(C)Guttation


Transpiration


109. The term binomial nomenclature was coined by:

(A)Engler and Prantl


Bentham and Hooker


(C)Linnaeus


Hutchinson


110. Which of the following gymnosperm is having anticancerous properties?

(A)Taxodium distichum


Taxodium speciosum


(C)Taxus baccata


Junoperous virginiana


111. Plants showing movement in their organs due to touch is:

(A)Chemonasty


Epinasty


(C)Thermonasty


Thigmonasty


112. In plant cell, enlargement and differentiation is controlled by hormones:

(A)Zeatin and Ethylene


Ethylene and Cytokinins


(C)Gibberellins and Cytokinins


Auxins and Abscisic acid


113. In plant cells division is controlled by:

(A)Abscisic acid


Ethylene


(C)Auxins


Cytokinins


114. Agar-agar is obtained from:

(A)Algae


Fungi


(C)Bryophyte


Pteridophyta


115. Clove is

(A)Bark drug


Root drug


(C)Flower drug


Leaf drug


116. The monosaccharides present in cane sugar are:

(A)Glucose Mannose


Glucose Lactose


(C)Glucose Fructose


Glucose Galactose


117. Which of the following Ficus species is largest spreading?

benghalensis


F. benjamina


elastica


F. glomerata


118. In nature, the flow of energy is:

(A)Unidirectional


Bidirectional


(C)Tridirectional


Multidirectional


119. Which of the following diseases is caused by fungi?

(A)Little leaf of Brinjal


Tunda disease of Apple


(C)Fruit rot of Papaya


Red rot of Sugarcane


120. Which of the following diseases is caused by bacteria?

(A)Late blight of Potato


Powdery mildew of wheat


(C)Citrus canker


Tobacco mosaic