Multiple Choice Questions

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Clinging roots are found in

  • orchids

  • Trapa

  • Podostemon

  • screwpine


A.

orchids

Clinging roots are found in orchids. They grow as epiphytes upon the trunks or branches of trees. They hang freely in the air and absorb atmospheric moisture using velaman (modification of epidermis).


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Chicory powder which is mixed with coffee powder is obtained from

  • root

  • leaf

  • stem

  • seeds


Stem cuttings are commonly used for the proprogation of

  • banana

  • rose

  • mango

  • cotton


Edible part in 'sorosis', a composite fruit, is

  • cotyledons

  • endosperm

  • perianth and peduncle

  • fleshy thalamus


Which of the following is a true nut?

  • Walnut

  • Cashewnut

  • Groundnut

  • Pistachio


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Botanical name of 'chana' is

  • Cicer arietinum

  • Phaseolus aureus

  • Lablab purpureus

  • Dolichos


An obligate root parasite is

  • Rafflesia

  • Loranthus

  • Viscum

  • Striga


Lady finger belongs to family

  • Malvaceae

  • Cucurbitaceae

  • Liliaceae

  • Brassiaceae


Pappus is modified

  • calyx

  • corolla

  • bracts

  • gynoecium


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Trimerous flower, superior ovary and axile placentation is characteristics of

  • Liliaceae

  • Cucurbitaceae

  • Solanaceae

  • Compositae


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