Multiple Choice Questions

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The plant body of moss (Funaria) is

  • completely sporophyte

  • predominantly sporophyte with gametophyte

  • completely gametophyte

  • predominantly gametophyte with sporophyte


D.

predominantly gametophyte with sporophyte

The gametophytic generation represents the dominant phase in the life cycle of bryophytes. The sporophyte phase is dependent on the gametophyte. This is the reason the plant body of Funaria moss is predominantly gametophytic with dependent sporophyte.


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Gymnosperms are called naked seed plants because these lack :

  • cotyledon

  • endosperm

  • ovary wall

  • testa


Algae are useful because they

  • are large in number

  • are used in alcoholic fermentation

  • purify the atmosphere

  • are used in curdling of milk.


Which of the following plant yields oil and fibre both ?

  • Cocos nucifera

  • Eucalyptus

  • Brassica campestris

  • Euphorbia hirta


Pinus seed is originated in :

  • capsule

  • microsporophyll

  • microsporangia

  • megasporophyll


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The circinate vemation is the characteristic feature of ferns. It refers to :

  • coiling of young leaves

  • arrangement of leaves on stem

  • attachment of sori on leaves

  • heterophilly


The endosperm of Pinus is :

  • haploid

  • diploid

  • triploid

  • polyploid


Hydrophytes are characterised by :

  • thick and large leaf

  • delicate and mucilagenous stem

  • short spinous stem

  • all of the above


Which of the following groups of algae belongs to class Rhodophyceae?

  • Laminaria, Fucus, Porphyra, Volvox

  • Gelidium, Porphyra, Dictyota, Fucus

  • Gracilaria, Gelidium, Porphyra, Polysiphonia

  • Volvox, Spirogyra, Ulothrix, Sargassum

  • Volvox, Spirogyra, Ulothrix, Sargassum


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Terpentine is obtained from :

  • flowers of angiosperm

  • wood of gymnosperms

  • pteridophytes

  • bacteria


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