Morphology of Flowering Plants

Multiple Choice Questions

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In Dianthus, placentation is

  • Basal

  • Free central

  • Axile

  • Marginal

B.

Free central

In free central placentation, the syncarpous gynoecium is unilocular and the placenta are borne on a central column formed by an extension of the base of the gynoecium where the carpels fuse or the suppression of septa. e.g. Stellaria, Dianthus

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    The material, which arrests cell division, is obtained from

    • Crocus

    • Colchicum

    • Dalbergis

    • Chysanthomum

    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

    In Ruscus, the stem is a

    • Phyllode

    • Cladode

    • Offset

    • Sucker

    Answer

    Coffee and quinine are obtained from the

    • Leguminosae

    • Asteraceae

    • Rubiaceae

    • Poaceae

    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

    Epigynous flowers are present in

    • Mustad

    • Brinjal

    • China rose

    • Cucumber

    Answer

    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

    The term 'keel' is used for special type of

    • Sepals

    • Petals

    • Stamenstellen

    • Carpels

    Answer
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    Catkin inflorescence is found in

    • Wheat

    • Oat

    • Mulberry

    • Fig

    Answer
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