Morphology of Flowering Plants

Transcription

1 65 Morphology of Flowering Plants 1. Fruit of Groundnut is [1988] (a) Legume (b) Caryopsis (c) Berry (d) Nut Legume is a dehiscent dry fruit produced from a monocarpellary superior ovary. Caryopsis is dry and one seeded fruit which developed from a superior monocarpellary ovary. In this the pericarp is closed and fused with seed coat. It is a characteristics of family Poaceae. 2. Micropyle of seed is involved in the passage of [1988] (a) male gamete (b) pollen tube (c) water (d) gases Micropyle of seed performs the function of absorbing water during germination. 3. Perisperm is [1988, 89] (a) remnant of endosperm (b) persistent nucellus (c) peripheral part of endosperm (d) disintegrated secondary nucleus Normally endosperm formation is accompanied by degeneration of nucellus. Persistent nucellus is termed as perisperm. The dust-like seeds of orchids have no endosperm. Orchid seedlings are mycoheterotrophic in their early development. In some other species, such as coffee, the endosperm also does not develop. Instead the nucellus produces a nutritive tissue termed perisperm. 4. Mango juice is got from [1989, 2002, 04] (a) epicarp (b) mesocarp (c) endocarp (d) pericarp and thalamus Mesocarp is the edible part of Mangifera indica (Mango). 5. Tomato and Tobacco both belong to the family Solanaceae. Solanaceae has some identifying characteristicsbicarpellary syncarpous superior ovary, axile plancentation, fruit is berry or capsule. 6. New Banana plants develop from [1990] (a) rhizome (b) sucker (c) stolon (d) seed Each pseudostem produces a single bunch of bananas, before dying and being replaced by a new pseudostem. The base of the plant is a rhizome (known as a corm). Corms are perennial, with a productive lifespan of 15 years or more. Cultivated bananas are parthenocarpic, which makes them sterile and unable to produce viable seeds. Lacking seeds, another form of propagation is required. This involves removing and transplanting part of the underground stem (called a corm). Usually this is done by carefully removing a sucker with some roots intact. 7. In Groundnut the food/oil reserve is present in [1990] (a) epicarp (b) mesocarp (c) endosperm (d) cotyledons Groundnut is economically important plant as edible oil is obtained from the cotyledons. Peanuts are a rich source of protein (roughly 30 grams per cup after roasting) and Monounsaturated fat. Recent research on peanuts and nuts in general has found anti-oxidants and other chemicals that may provide health benefits. Peanuts are a significant source of resveratrol, a chemical studied for potential anti-aging effects. 8. Tegmen develops from [1990] (a) funiculus

2 66 (b) chalaza (c) inner integument (d) outer integument In seeds developing from bitegmic ovules the seed coat has two layers outer testa and inner tegmen. Testa develops from outer integument whereas tegmen develops from inner integument. 9. Vivipary is characteristic of [1990] (a) mesophytes (b) xerophytes (c) hygrophytes (d) halophytes Special type of seed germination is characteristic of halophytes growing in saline conditions is vivipary. The seed germination occurs inside the fruit while it is attached to the parent plant. 10. A family delimited by head type of inflorescence is [1990] (a) Fabaceae (b) Asteraceae (c) Solanaceae (d) Liliaceae Asteraceae possesses head or capitulum inflorescence which is racemose and is surrounded by an involucre of bracts. 11. Velamen is found in [1991] (a) roots of Screwpine (b) aerial and terrestrial roots of orchids (c) leaves of Ficus elastica (d) aerial roots of orchids Aerial roots of orchids hang freely in the air and absorb moisture with the help of special sponge like tissue called velamen. 12. Vegetative reproduction of Agave occurs through [1991] (a) rhizome (b) stolon (c) bulbils (d) sucker Agave species are popular ornamental plants. Each rosette is monocarpic and grows slowly to flower only once. During flowering a tall stem or mast grows from the center of the leaf rosette and bears a large number of shortly tubular flowers. After development of fruit the original plant dies, but suckers are frequently produced from the base of the stem which become new plants. It is a common misconception that Agaves are a cactus. 13. Syngenesious condition is found in [1991] (a) Asteraceae (b) Labiate (c) Solanaceae (d) Fabaceae When stamens are united by their anthers and filaments are free the condition is called syngenesious. It is found in family Asteraceae (Compositae). The condition is an adaptation for entomophily. 14. Fruit of Mangifera indica is [1991] (a) Berry (b) Drupe (c) Capsule (d) Siliqua Drupe is a fleshy one seeded, indehiscent fruit eg. Mangifera indica. 15. In Groundnut the food/oil reserve is present in [1990] (a) epicarp (b) mesocarp (c) endosperm (d) cotyledons Groundnut is economically important plant as edible oil is obtained from the cotyledons. Peanuts are a rich source of protein (roughly 30 grams per cup after roasting) and Monounsaturated fat. Recent research on peanuts and nuts in general has found anti-oxidants and other chemicals that may provide health benefits. Peanuts are a significant source of

3 67 resveratrol, a chemical studied for potential anti-aging effects. 16. Botanical name of Cauliflower is [1991] (a) Brassica oleracea var. capitata (b) Brassica campesteris (c) Brassica oleracea var. botrytis (d) Brassica oleracea var. gemmifera Cauliflower has the scientific name Brassica oleracea belonging to the variety botrytis. 17. Vivipary is [1992] (a) seed germination with subterranean cotyledons (b) seed germination with epiterranean cotyledons (c) fruit development without pollination (d) seed germination inside the fruit while attached to the plant Vivipary germination is the characteristic mode of seed germination in Rhizophora (Mangrove). 18. Germination of seed within fruit is [1992] (a) ovipary (b) vivipary (c) hypogeal (d) epigeal Vivipary 19. Epipetalous stamens with free filaments and fused anthers occur in [1991, 92] (a) Asteraceae (b) Solanaceae (c) Liliaceae (d) Poaceae Asteraceae possess five stamens with free filaments but anthers united forming a tube around the style (syngenesious). 20. Pulses are obtained from [1993] (a) Fabaceae (b) Asteraceae (c) Poaceae (d) Solanaceae Pulses which are economically important belong to the family Fabaceae. 21. A perennial plant differs from biennial in [1994] (a) having underground perennating structure (b) having asexual reproductive structures (c) being tree species (d) not dying after seasonal production of flowers Perennials survive for more than two years and produce flowers and fruits during specific seasons. 22. Plant having column of vascular tissues bearing fruits and having a tap root system is [1994] (a) monocot (b) dicot (c) gymnosperm of dicot (d) gymnosperm or monocot Dicots possess tap root system. 23. Hypanthodium is [1994] (a) thalamus (b) fruit (c) inflorescence (d) ovary Hypanthodium is a special kind of inflorescence where the receptacle is usually fleshy and flash-shaped. e.g. Ficus. 24. Buttress roots are found in [1995] (a) sorghum (b) banyan (c) Terminalia (d) Pandanus Buttress roots are asymmetrically thickened prop roots found at the base of certain trees. They render additional mechanical support to the trees. e.g. Salmalia, Terminalia etc. 25. Tetradynamous stamens are found in family [1995, 01] (a) Malvaceae (b) Solanaceae (c) Cruciferae (d) Liliaceae

4 68 Tetradynamous stamens consist of four long-sized stamens and two shortsized stamens. Such kind of stamens are found in family Cruciferae e.g. Sarsoo. Tetradynamous condition is characteristic of this family. 26. Which one of the following is a true fruit? (a) Apple (b) Pear (c) Cashew nut (d) Coconut The fruit is a mature or ripened ovary. When a fruit develops exclusively from the ovary, it is said to be true fruit. When in addition to the ovary, some other floral part also participates in the formation of fruits, then it is known as false fruit. Apple, pear, cashewnut, mulberry etc. are all false fruits. 27. Which part of the coconut produces coir? (a) Seed coat (b) Mesocarp (c) Epicarp (d) Pericarp. Coir (Etymological origin: from Tamil and Malayalam - kayar - cord) is a coarse fibre extracted from the fibrous outer shell of a coconut. Coir fibres are found between the husk and the outer shell of a coconut. The individual fibre cells are narrow and hollow, with thick walls made of cellulose. They are pale when immature but later become hardened and yellowed as a layer of lignin is deposited on their walls. 28. Which one of the following statements is correct with respect to the plant species and its use? [1997] (a) Oryza sativa rich source of protein (b) Manihot utilissima root tubers eaten especially in Kerala (c) Ricinus communis important edible cereal (d) Hibiscus esculentus flowers eaten throughout the country. Oryza sativa is rice. Ricinus communis is castor a source of castor oil that acts as a purgative. Manihot is the scientific name for tapioca, a tuber rich in starch. Hibiscus esculentus is okra (bhindi). 29. Most plants are green in colour because [1997] (a) the atmosphere filters out all the colours of the visible light spectrum except green (b) green light is the most effective wavelength region of the visible spectrum in sunlight for photosynthesis (c) chlorophyll is least effective in absorbing green light (d) green light allows maximum photosynthesis The leaves appear green because of the pigment chlorophyll which does not absorb green light rather reflects it back. 30. Heterospory and seed habit are often discussed in relation to a structure called (a) spathe (b) bract (c) petiole (d) ligule Heterospory, development of seed habit and ligulate leaves are important features of Selaginella. The reproductive structure in Selaginella is strobilus. A strobilus have many ligulate sporophylls. Two types of spores are produced in megasporophylls and microsporophylls. Ligule is a small leaf like outgrowth at the base of leaf. 31. Which plant will lose its economic value if its fruits are produced by induced parthenocarpy? [1997] (a) brape (b) pomegranate (c) banana (d) orange The development of fruit without fertilization is called parthenocarpy. Parthenocarpy is induced to produce seedless variety of fruits. And since in pomegranate seeds form edible part, it will loose its importance if parthenocarpy is induced.

5 Aril represents the edible part of [1997, 99, 2005, 06] (a) banana (b) litchi (c) mango (d) apple Aril develops from outer seed coat and is the edible part of litchi. An aril (or arillus) is a fleshy covering of certain seeds formed from the funiculus attachment point of the seed.the aril may create a fruit-like structure called a false-fruit and is produced by a few species of gymnosperms, notably the yews and related conifers in the families Taxaceae and Cephalotaxaceae. 33. The embryo in sunflower has [1998] (a) one cotyledon (b) two cotyledons (c) many cotyledons (d) no cotyledon Sunflower is a dicotyledonous plant. Hence its embryo has two cotyledons. Plants like maize are monocotyledonous and hence have a single cotyledon in the embryo. 34. Floral features are chiefly used in Angiosperms identification because [1998] (a) flowers are of various colours (b) flowers can be safely pressed (c) reproductive parts are more stable and conservative than vegetative parts (d) flowers are nice to work with Reproductive parts (floral features) are more stable and conservative than vegetative parts, which exhibit changes due to the environmental factors quite readily. So floral features are more reliable. 35. Angiosperm to which the largest flowers belong is? [1999] (a) total stem parasite (b) partial stem parasite (c) total root parasite (d) partial root parasite Rafflessia is an Angiosperm, which produces the largest flowers. It is also a total root parasite. 36. The plant, which bears clinging roots, is (a) trapa (b) orchid (c) screw pine (d) podostemon Screw pine (Pandanus) bear stilt roots. Trapa bears assimilatory roots. Orchid bear clinging roots. 37. The type of placentation in which ovary is syncarpous, unilocular and ovules on sutures is called [1999] (a) apical placentation (b) parietal placentation (c) marginal placentation (d) superficial placentation The arrangement of ovules inside the ovary of a flowering plant is called placentation. In marginal placentation, the ovule develop from a longitudinal suture where the margins of the ovary wall fused. e.g.. Pea, gram. In apical placentation a single ovule is born near the apex of the ovary. Here ovary is unilocular (Cannabis). In superficial placentation the ovary is unilocular simple or syncarpous e.g. Nymphaea. 38. Match the following and indicate which is correct (a) Cucurbitaceae Orange (b) Malvaceae Cotton (c) Brassicaceae Wheat (d) Leguminosae Sunflower Malvaceae - Cotton 39. What is eye of potato? [2001] (a) Axillary bud (b) Acessory bud (c) Adventitious bud (d) Apical bud Axillary bud is the bud arising in the axil of branch. Apical bud arises at the apex. Adventitious bud arises from any location other than its usual location.

6 70 (c) Opuntia predator (d) Capsella hydrophyte Opuntia is a xerophyte. Cuscuta is a parasite. Capsella is not hydrophyte. 40. Roots of which plant contains an oxidising agent? [2001] (a) Carrot (b) Soyabean (d) Mustard (d) Radish In the roots of soyabean plant, Leghaemoglobin, a pigment with affinity for oxygen, is found. 41. Edible part of banana is [2001] (a) epicarp (b) mesocarp and less developed endocarp (c) endocarp and less developed mesocarp (d) epicarp and mesocarp Banana (Musa paradisica) is a fleshly fruit with rich sugar content. Edible part is fleshy mesocarp and rudiment endocarp, develops from trilocular, inferior ovary. 42. Bicarpellary gynoecium and oblique ovary occures in [2001] (a) Mustard (b) Banana (c) Pisum (d) Brinjal In mustard bicarpellary gynoecium with oblique ovary occurs. 43. Which is correct pair for edible part? [2001] (a) Tomato - Thalamus (b) Maize - Cotyledons (c) Guava - mesocarp (d) Data palm - Mesocarp In guava, mesocarp and endocarp form the edible part. In maize seed coat is fused with fruit wall. 44. Which of the following is a correct pair? (a) Cuscuta parasite (b) Dischidia insectivorous 45. Juicy hair like structures observed in the lemon fruit develop from [2003] (a) mesocarp and endocarp (b) exocarp (c) mesocarp (d) endocarp The juicy hair like structures in the lemon fruit develops from the inner side of endocarp (from the placenta). 46. The aleurone layer in maize grain is specially rich in [2003] (a) auxins (b) proteins (c) starch (d) lipids The aleurone layer in maize grain is specially rich in proteins. Aleurone (from Greek aleuron, flour) is a protein found in the endosperm of many seeds. It forms the outermost layer of the seed coat in some grains. During seed germination, hydrolysis in the seed causes the aleurone cells to break down into amino acids. Once triggered by hormones released from the embryo the aleurone synthesises enzymes in order to break down the starchy endosperm supplying sugars to drive the growth of roots and the acrospire. Aleurones can have two different morphological features, Homogenous and Heterogenous. The homogenous aleurone is consisted of similar protein bodies (e.g. Phaseolus vulgaris) while the heterogenous aleurone consisted different shape and type of proteins covered with a membrane (e.g. Ricinus communis). 47. An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is [2004] (a) Hemitropous (b) Campylotropous (c) Anatropous (d) Orthotropous

7 71 In campylotropous ovule, the body is curved but the embryo sac is straight eg. Capsella. In Anatropous, the body of ovule is inverted and gets fused with funiculus along its whole length on one side (most of the angiosperms). In orthotropous condition the body of ovule lies straight and upright over the funicle. e.g. Piperaceae, Polygonaceae. 48. In a cereal grain the single cotyledon of embryo is represented by [2006] (a) scutellum (b) prophyll (c) coleoptile (d) coleorhiza Single cotyledon of embryo in cereal grain is represented by scutellum. Coleoptile represent the covering of stem. Coleorhiza represents the covering of root. 49. What type of placentation is seen in sweet pea? [2006] (a) Axile (b) Free central (c) Marginal (d) Basal In sweet pea the gynoecium is monocarpellary and bears a single placenta along the junction of two fused margins, this is called marginal placentation. 50. Long filamentous threads protruding at the end of the young cob of maize are [2000, 06] (a) styles (b) ovaries (c) hairs (d) anthers Long filamentous threads of maize are the styles of the ovaries. In fact these are the longest styles in plants. 51. Pineapple (ananas) fruit develops from [2006] (a) a multipistillate syncarpous flower (b) a cluster of compactly borne flowers on a common axis (c) a multilocular monocarpellary flower (d) a unilocular polycarpellary flower Pineapple (Ananas sativus) is a sorosis fruit developed from a composite inflorescence which is actually a cluster of compactly borne flowers on a common axis. 52. Pentamerous, actinomorphic flowers, bicarpellate ovary with oblique septa and fruit a capsule of berry, are characteristic features of [2006] (a) Brassicaceae (b) Solanaceae (c) Liliaceae (d) Asteraceae Pentamerous, actinomorphic flowers, bicarpillary ovary with oblique septa, fruit is capsule or berry are the characteristic features of family Solanaceae. In Brassicaceae dimerous or tetramerous, actinomorphic but sometimes zygomorphic flower, bicarpellary ovary with a false septum (called replum), fruit is siliqua or silicula. Lilicaeae Trimerous, actinomorphic flower, tricarpillary, syncarpous ovary, fruit is berry or capsula. Asteraceae Pentamerous, actinomorphic or zygomorphic flower, bicarpillary, syncarpous, unilocular ovary, fruit is cypsella. 53. Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing microorganism [2007] (a) Crotalaria juncea (b) Cycas revoluta (c) Cicer arietinum (d) Casuarina equisetifolia It is also know as Australian pine, which is a deciduous tree with a soft, wispy, pinelike appearance that can grow to 100 feet or more in height. Also known as ironwood, beefwood. It bears a superficial resemblance to the conifer genus Pinus because of its small, round, cone-like fruits and its branchlets of scale-like leaves that look like pine needles. 54. Replum is present in the ovary of flower of (a) Lemon

8 72 (b) Mustard (c) Sun flower (d) Pea Replum is present in the ovary of flower of mustard. A false septun called replum develops between the two parietal placentae in mustard and other members of family Brassicaceae. The ovary becomes bilocular. 55. Which is correct pair for edible part? [2001] (a) Tomato - Thalamus (b) Maize - Cotyledons (c) Guava - mesocarp (d) Data palm - Mesocarp In guava, mesocarp and endocarp form the edible part. In maize seed coat is fused with fruit wall. 56. An example of axile placentation is: [2009] (a) Dianthus (b) Lemon (c) Marigold (d) Argemone In flowering plants, placentation occurs where the ovules are attached inside the ovary. An example of axile placentation is Lemon. In this type of placentation the ovary is sectioned by radial spokes with placentas in separate locules. 57. In unilocular ovary with a single ovule the placentation is: [2010] (a) Marginal (b) Basal (c) Free Central (d) Axile In basal type of placentation, the ovary is unilocular with a single ovule. In this the placenta is at the base of the ovary. It is seen in Polygonum. 58. Keel is characteristic of the flowers of: (a) Gulmohur (b) Cassia (c) Calotropis (d) Bean Keel is the characteristic of the flowers of family papilionaceae. For example, bean, gram, pea etc. The flowers of this family have butterfly shaped corolla. The outermost petals of these flowers is the largest and is called vexillum, the two largest petals are similar and have wings and the two anterior petals called keel are fused enclosing stamens and carpels. 59. Ovary is half-inferior in the flowers of: (a) guava (b) plum (c) brinjal (d) cucumber A flower in which floral parts arise from around the ovary is called perigynous. In this, the ovary is half inferior and half superior. It can be seen in the flowers of plum, peach etc. 60. The technical term used for the androecium in a flower of China rose (Hibiscus rosa sinensis) is: [2010] (a) Monadelphous (b) Diadelphous (c) Polyandrous (d) Polyadelphous Hibiscus belongs to Malvaceae family. It possess numerous stamens that are called monadelphous. 61. Which one of the following statements is correct? [2011] (a) In tomato, fruit is a capsule (b) Seeds of orchids have oil-rich endosperm (c) Placentation in primose is basal (d) Flower of tulip is a modified shoot Tulips are most popular and wildly grown flowers. Tulips are bulbs, possessing modified stems and leaves. 62. What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells? [2011] (a) 42 (b) 63 (c) 84

9 73 (d) 21 Aleurone cells are the outer cell layer of the endosperm, usually only one cell thick in wheat and the only endosperm tissue alive at maturity. The cell layer of this layer are responsible for the de-novo synthesis of enzyme needed during germination. The chromosome number is 63 of a plant with 42 chromosome in its root tip cells. 63. The coconut water and the edible part of coconut are equivalent to: [2012] (a) Endosperm (b) Endocarp (c) Mesocarp (d) Embryo Liquid endosperm is edible part of coconut. 64. Flowers are zygomorphic in: [2011] (a) mustard (b) gulmohur (c) ioruato (d) Datura When a flower can be divided into two similar halves only in one particular vertical plane, it is zygomorphic, e.g. pea, gulmohar, bean, etc. 65. The ovary is half inferior in flowers of (a) peach (b) cucumber (c) cotton (d) guava The ovary is half-inferior in flowers of peach. 66. Phyllode is present in: [2012] (a) Asparagus (b) Euphorbia (c) Australian Acacia (d) Opuntia Phyllode is present in Australian Acacia. It is modification of leaf in which lamina is absent and petiole become flattened and perform the function of food synthesis. 67. Whorled, simple leaves with reticulate venation are present in [2011M] (a) Calotropis (b) Neem (c) China rose (d) Alstonia Whorled phyllotaxy is a feature of Nerium and Alstonia. In Alstonia five leaves are present in a whorl while in Nerium three leaves are present in a whorl. 68. Sweet potato is homologous to [2011M] (a) Potato (b) Colocasia (c) Ginger (d) Turnip Sweet potato and turnip both are roots and become modified for special functions, the most common being the formation of tuberous roots for food storage. 69. Placentation in tomato and lemon is [2012] (a) Parietal (b) Free central (c) Marginal (d) Axile Parietal Ex. - Mustard Free central Ex. - Primula & Dianthus Marginal Ex. - Pea Axile Ex. - Tomato, lemon, Chinarose 70. Cymose inflorescence is present in: [2012] (a) Solanum (b) Sesbania (c) Trifolium (d) Brassica Cymose infloresence in present in Solanum. Cymose inflorescence is the name of determinate or definite inflorescence in which the tip of the main

10 74 axis terminates in a flower and further growth continues by one or more lateral branches which also behave like the main axis. 71. Phyllode is present in: [2012] (a) Asparagus (b) Euphorbia (c) Australian Acacia (d) Opuntia Phyllode is present in Australian Acacia. It is modification of leaf in which lamina is absent and petiole become flattened and perform the function of food synthesis. 72. The gynoecium consists of many free pistils in flowers of [2012] (a) Aloe (b) Tomato (c) Papaver (4) Michelia 73. How many plants in the list given below have composite fruits that develop from an inflorescence Walnut, poppy, radish, fig, pineapple, apple, tomato, mulberry [2012] (a) Four (b) Five (c) Two (d) Three Fig-developed by hypanthodium inflorescence; pineapple- developed by spike inflorescence; Mulberry-developed by catkin inflorescence. 74. The coconut water and the edible part of coconut are equivalent to: [2012] (a) Endosperm (b) Endocarp (c) Mesocarp (d) Embryo Liquid endosperm is edible part of coconut. 75. Vexillary aestivation is characteristic of the family [2012] (a) Fabaceae (b) Asteraceae (c) Solanaceae (d) Brassicaceae 76. Which one of the following organisms is correctly matched with its three characteristics? [2012M] (a) Pea: C3 pathway, Endospermic seed, Vexillary aestivation (b) Tomato: Twisted aestivation, Axile placentation, Berry (c) Onion: Bulb, Imbricate aestivation, Axile placentation (d) Maize: C3 pathway, Closed vascular bundles, Scutellum Onion - Bulb - Underground stems - Imbricate aestivation -Axile placentation - Member of Liliaceae. 77. How many plants in the list given below have marginal placentation? Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, Chilli, Colchicine, Onion, Moong, Pea, Tobacco, Lupin [2012M] (a) Four (b) Five (c) Six (d) Three Marginal placentation is a placentation with ovules borne on the wall along the ventral suture of a simple ovary. Gram, Arhar, Sun hemp, Moong, Pea & Lupin belongs to fabaceae family that bears marginal placentation. 78. In china rose the flowers are: [NEET 2013] (a) Actinomorphic, epigynous with valvate aestivation (b) Zygomorphic, hypogynous with imbricate aestivation (c) Zygomorphic, epigynous with twisted aestivation (d) Actinomorphic, hypogynous with twisted aestivation In china rose (Hibiscus rose-sinensis) flowers are actinomorphic, hypogynous and twisted aestivation in corolla. 79. Among bitter gourd, mustard, brinjal, pumpkin, china rose, lupin,

11 75 cucumber, sunhemp, gram, guava, bean, chilli, plum, petunia, tomato, rose, withania, potato, onion, aloe and tulip how many plants have hypogynous flower? [NEET 2013] (a) Ten (b) Fifteen (c) Eighteen (d) Six Mustard (cruciferae), brinjal (solanaceae) c h i n a r o s e (m a l v a c e a e), l u p i n (leguminosae), gram (leguminosae), bean (leguminosae), chilli, Petunia, potato, tomato, Withania (solanaceae), onion, Aloe, tulip (liliaceae) are having hypogynous flower while bittergourd, cucumber (cucurbitaceae), guava (myrtaceae) are having epigynous flower and rose are having perigynous flower. 80. Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicine, Sweet pea, Petunia, Indigofera, Mustard, Soyabean, Tobacco and groundnut how many plants have corolla with valvate aestivation? [NEET Kar. 2013] (a) Five (b) Six (c) Seven (d) Eight Calotropis, tulip, Asparagus, colchicine, Petunia, mustard, tobacco having valvate aestivation while sweet pea, groundnut, soyabean, Indigofera, Sesbania having vexillary aestivation. 82. In a cymose inflorescence the main axis [NEET Kar. 2013] (a) Terminates in a flower (b) Has unlimited growth (c) Bears a solitary flower (d) Has unlimited growth but lateral branches end in flowers In cymose inflorescence, the growth of the main axis is definite because the growing point of peduncle is used up in the formation of a flower. Further growth of flowering axis is continued by one or more lateral branches which also end in flower. 83. Inflorescence is racemose in [NEET Kar. 2013] (a) Soyabean (b) Brinjal (c) Tulip (d) Aloe Inflorescence in family fabaceae (e.g., soyabean) is racemose. Inflorescence in family liliaceae (e.g., tulip, Aloe) is solitary/cymose; often umbellate. Inflorescence in family solanaceae (e.g., brinjal) is solitary, axillary or cymose as in Solanum. : How many plants among China rose, Ocimum, sunflower, mustard, Alstonia, guava, Calotropis and Nerium (Oleander) have opposite phyllotaxy? [NEET Kar. 2013] (a) Two (b) Three (c) Four (d) Five Phyllotaxy is the pattern of arrangement of leaves on the stem or branch. Ocimum, Guava, Calotropis Opposite phyllotaxy China rose, Sunflower, mustard Alternate phyllotaxy Alstonia, Nerium (Oleander) whorled phyllotaxy