Multiple Choice Questions

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In Ruscus, the stem is a

  • Phyllode

  • Cladode

  • Offset

  • Sucker


B.

Cladode

When the stem becomes green, flattened or fleshy and carries out photosynthesis, this is called phylloclade. The short, green, cylindrical or flattened phylloclade with one or two internodes is called cladodes 28., Ruscus.


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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


The material, which arrests cell division, is obtained from

  • Crocus

  • Colchicum

  • Dalbergis

  • Chysanthomum


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


Catkin inflorescence is found in

  • Wheat

  • Oat

  • Mulberry

  • Fig


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Epigynous flowers are present in

  • Mustad

  • Brinjal

  • China rose

  • Cucumber


In Dianthus, placentation is

  • Basal

  • Free central

  • Axile

  • Marginal


The term 'keel' is used for special type of

  • Sepals

  • Petals

  • Stamenstellen

  • Carpels


Coffee and quinine are obtained from the

  • Leguminosae

  • Asteraceae

  • Rubiaceae

  • Poaceae


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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


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