Morphology of Flowering Plants

Multiple Choice Questions

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The material, which arrests cell division, is obtained from

  • Crocus

  • Colchicum

  • Dalbergis

  • Chysanthomum

B.

Colchicum

Colchicine is an antibiotic drug, which is obtained from Colchicum (family-Liliaceae). It binds to one tubulin molecule an prevents its polymerisation. The depolymerisation of tubulin results in the disappearance of mitotic spindle blocking the cell's mitotic chromosomal division at metaphase and anaphase.

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    The term 'keel' is used for special type of

    • Sepals

    • Petals

    • Stamenstellen

    • Carpels

    Answer

    Catkin inflorescence is found in

    • Wheat

    • Oat

    • Mulberry

    • Fig

    Answer

    In Dianthus, placentation is

    • Basal

    • Free central

    • Axile

    • Marginal

    Answer

    Study the following statements and select the option with correct statements.

    1. Pulvinus leaf base is present in some leguminous plants
    2. In Eichhornia, the petioles expand becomes green and synthesise food.
    3. Opposite phyllotaxy is seen in guava.

    • I and II

    • I and III

    • II and III

    • I, II and III

    Answer
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    A fern prothallus is bisexual. If fertilisation takes place between their gametes than it is known as

    • cross- fertilisation

    • self- fertilisation

    • isogamous

    • viviparous

    Answer

    In Ruscus, the stem is a

    • Phyllode

    • Cladode

    • Offset

    • Sucker

    Answer

    Coffee and quinine are obtained from the

    • Leguminosae

    • Asteraceae

    • Rubiaceae

    • Poaceae

    Answer

    Epigynous flowers are present in

    • Mustad

    • Brinjal

    • China rose

    • Cucumber

    Answer
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    Three floral diagrams are given here. Their respective families are assigned in the answer key. Find out the families to which these diagrams belong to

    • A-Liliaceae, B-Asteraceae, C-Solanaceae

    • A-Asteraceae, B-Solanaceae, C-BRassicaceae

    •  A-Asteraceae, B-Solanaceae, C-Asteraceae

    •  A-Poaceae, B-Solanaceae, C-Asteraceae

    Answer
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