Pappus is modified from Biology Morphology of Flowering Plants

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 Multiple Choice QuestionsMultiple Choice Questions

71.

Chicory powder which is mixed with coffee powder is obtained from

  • root

  • leaf

  • stem

  • seeds


72.

Stem cuttings are commonly used for the proprogation of

  • banana

  • rose

  • mango

  • cotton


73.

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

  • cotyledons

  • endosperm

  • perianth and peduncle

  • fleshy thalamus


74.

Which of the following is a true nut?

  • Walnut

  • Cashewnut

  • Groundnut

  • Pistachio


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75.

Botanical name of 'chana' is

  • Cicer arietinum

  • Phaseolus aureus

  • Lablab purpureus

  • Dolichos


76.

An obligate root parasite is

  • Rafflesia

  • Loranthus

  • Viscum

  • Striga


77.

Lady finger belongs to family

  • Malvaceae

  • Cucurbitaceae

  • Liliaceae

  • Brassiaceae


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78.

Pappus is modified

  • calyx

  • corolla

  • bracts

  • gynoecium


A.

calyx

The pappus is the modifed calyx, the part of an individual floret that surrounds the base of the corolla tube in flower heads of the plant Asteraceae.  It basically functions as a parachute for the dispersal of- egSonchus, Tagstes. Hence the mechanism is parachute mechanism.


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79.

Trimerous flower, superior ovary and axile placentation is characteristics of

  • Liliaceae

  • Cucurbitaceae

  • Solanaceae

  • Compositae


80.

Clinging roots are found in

  • orchids

  • Trapa

  • Podostemon

  • screwpine


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