The number of female flowers found in a cyanthium is from Biolog

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 Multiple Choice QuestionsMultiple Choice Questions

131.

Lady finger belongs to family

  • Malvaceae

  • Cucurbitaceae

  • Liliaceae

  • Brassiaceae


132.

Pappus is modified

  • calyx

  • corolla

  • bracts

  • gynoecium


133.

Trimerous flower, superior ovary and axile placentation is characteristics of

  • Liliaceae

  • Cucurbitaceae

  • Solanaceae

  • Compositae


134.

Clinging roots are found in

  • orchids

  • Trapa

  • Podostemon

  • screwpine


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135.

Expanded green stem of Opuntia is called

  • phylloclade

  • tendril

  • bulb

  • cladode


136.

Most of the economically important fibre yielding plants belong to family

  • Malvaceae

  • Solanaceae

  • Cruciferae

  • Paceae


137.

Ginger is an underground stem. It is distinguished from root because

  • it lacks chlorophyll

  • it stores food

  • it has nodes and internodes

  • it has xylem and vessels


138.

Floral formula of k5 CA5+5 G1 is characteristic of the family

  • Papilionaceae

  • Caesalpinoideae

  • Cruciferae

  • Mimosoideae


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139.

The number of female flowers found in a cyanthium is

  • one

  • three

  • two

  • many


A.

one

Cyanthium is a special type of inflorescence (found in Euphorbia sp.) with a cup shaped involucre having nector secreting glands, a centrally placed single large female flower which is reduced to pistil surrounded by many male flowers present in the form of stamens.


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140.

In turnip, 2/3 part of swollen area is derived from

  • hypophysis

  • hypocotyl

  • epicotyl 

  •  radicle


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