Growth of stem in diameter is due to from Biology Morphology of

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 Multiple Choice QuestionsMultiple Choice Questions

151.

Consider the following four statements I, II, III and IV and select the right option.

I. The floral formula for Liliaceae is

P3 + 3 A3 + 3G3

II. In vexillary aestivation, the large posterior petal is called, standard, two lateral ones are wings and two small anterior petals are termed keel.

III. In pea flower the stamens are monoadelphous.

IV. The floral formula for Solanaceae is

K(3) C(3) A(14)G(2)

The correct statements are

  • II and III

  • I and III

  • I and II

  • III and IV


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152.

Growth of stem in diameter is due to

  • apical cell

  • lateral meristem

  • apical meristem

  • intercalary meristem


B.

lateral meristem

The stem of plants increases in girth by lateral meristem. It increases the girth of the plant root or stem, rather than its length. As long as thelateral meristems continue to produce new cells, the stem or root will continue to grow in diameter.


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153.

Corm is an

  • underground vertical leaf

  • underground swollen stem

  • underground horizontal root

  • underground horizontal leaf


154.

Which of the following plants are all roots?

  • Podostemon

  • Lemna

  • Wolffia

  • Utricularia


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155.

The petiole modified into flattened lamina like structure is present in

  • Acacia nilotica

  • Acacia arabica

  • Acacia australasia

  • Acacia auriculoformis


156.

Feathery stigma belongs to

  • Wheat

  • pea

  • Datura

  • Caesalpinia


157.

In Gloriosa, the tendrillar part is formed by

  • stipule

  • leaf apex

  • leaf petiole

  • axillary bud


158.

Diadelphy can be found in

  • Pisum

  • Citrus

  • Bombax

  • Brassica


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159.

One of the following is not a flower

  • Shoe flower

  • Passion flower

  • Sunflower

  • May flower


160.

Catkin inflorescence is characteristic of

  • Morus

  • Triticum

  • Ficus

  • All of these


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