Morphology of flowering plant

 Morphology of flowering plant 

51. Drug Santonin (anthelmintic) comes from

A. Artemisia

B. Taraxacum

C. Emilia sonchifolia

D. Cantipeda orbicularis

Answer: A

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52. Heterogamous head is with

A. Ray florets only

B. Disc florets only

C. Neuter flowers only

D. Both ray and disc florets

Answer: D

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53. Zygomorphic flower occurs in the family which is

A. Papilionaceae

B. Poaceae

C. Ray florets of Asteraceae

D. All of these

Answer: D

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54. Feathery stigma and versatile stamens are the feature of family

A. Poaceae

B. Umbelliferae

C. Liliaceae

D. Malvaceae

Answer: A

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55. In Pisum sativum, the aestivation of corolla is

A. Ascending imbricate

B. Descending imbricate

C. Quincuncial

D. Valvate

Answer: B

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56. Monoadelphous condition and

pentacarpellary ovary are present in

A. China rose family

B. Pea family

C. Potato family

D. Yucca family

Answer: A

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57. Largest angiospermic family with advanced type of placentation is

A. Poaceae

B. Asteraceae

C. Cucurbitaceae

D. Both (1) and (2)

Answer: B

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58. Palm oil is extracted from

A. Glycin

B. Gossypium

C. Elaeis

D. Olea

Answer: C

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59. Plants yielding colebiaine belong to the family

A. Liliceae

B. Asteraceae

C. Lamiaceae

D. Arecaceae

Answer: A

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60. Identify the wrong statement .

A. A plant that bears male , female and

bisexual flowers is polygamous

B. Actinomorphic flowers can be dissected into two equal halves from any plane .

C. Superior ovary is found in hypogynous flowers .

D. Side of the flower towards the bract is called posterior side .

Answer: D

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61. A flower with five unequal petals has largest posterior petal , two lateral slighly small petals and two anterior petals partially fused to form a boat-shaped structure . Which is not correct for such a flower ?

A. Descending imbricate aestivation

B. Odd sepal anterior

C. Piston mechanism of pollination

D. Many carpels

Answer: D

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62. Staminal tube comes out of flower in

A. Pisum sativum

B. Cassia fstula

C. Hibiscus

D. Iberis

Answer: C

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63. Beauty of Bougainvillea flower is due to

A. Corolla

B. Bracts

C. Calyx

D. Androecium

Answer: B

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64. When pistillate and besexual flowers develop on defferent plants. The condition is

A. Gynodioecious

B. Gymnomonoecius

C. Polygamodiecius

D. Polygamonoecius

Answer: A

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65. Non-essential floral organs without differentiation of calyx and corolla are called

A. Thalamus

B. Pedicel

C. Perianth

D. Lodicules

Answer: C

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66. Epicalyx occurs in

A. Cycas

B. Jower

C. Nephrolepis

D. China Rose

Answer: D

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67. In guava, curcubits flowers are

A. Hypogynous

B. Epigynous

C. Perigynous

D. Both (1) and (2)

Answer: B

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68. To which of the following flower ' synandrous' condition is found

A. Sunflower

B. Gourd

C. Pea

D. Lemon

Answer: B

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69. In angiospermic bud condition floral but is covered by whorls of

A. Petals

B. Anthers

C. Sepals

D. Stigmas

Answer: C

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70. Overian parts are fused, styles and stigmas free but overy part is uniloculor with free central placentation. The plant is

A. Michelia

B. Nymphaea

C. Abutilon

D. Dianthus

Answer: B

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71. Replum is present in the ovary of flower of

A. Mustard

B. Pea

C. Sunflower

D. Lemon

Answer: A

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72. A plant has an androecium with manadelphous stamens, monothecous and reniform anthers. The corolla exhibits contorted aestivation. The plant could be

A. Nerium

B. Rauwolfia

C. Hibiscus

D. Lathyrus

Answer: C

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73. Pollinia occur in

A. Cruciferae

B. Asteraceae

C. Poaceae

D. Asclepiadaceae

Answer: D

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74. Ochreate stipules are found in

A. Leguminosae

B. Polygonaceae

C. Acanthaceae

D. Malvaceae

Answer: B

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75. Ovules occur along the ventral suture over a ridge in two rows in placentation

A. Marginal

B. Pareital

C. Axile

D. Free central

Answer: A