Multiple Choice Questions

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Which one of the following is not a flower?

  • Shoe-flower

  • Sunflower

  • Larkspur

  • Water lily


B.

Sunflower

Sunflower (Helianthus annuus) is a member of the Asteraceae family. Its flower is not a real flower but a whole inflorescence having a group of many small flowers. This inflorescence is known as capitulum or head inflorescence.


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Water bloom is generally caused by

  • green algae

  • blue- green algae

  • bacteria

  • Hydrilla


The edible dry fruit 'chigoza' is

  • fruit of Cycas

  • fruit of Pinus gerardiana

  • seed of Cycas

  • seed of Pinus gerardiana


Source of commercial chewing gum latex is

  • Hevea brasiliensis

  • Carica papaya

  • Ficus elastica

  • Achras sapota


Indusium is found in

  • algae

  • ferns

  • moss

  • Cycas


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Which of the following is not the feature of gymnosperms?

  • parallel venation

  • perennial plants

  • distinct branches (long and short branches)

  • xylem with vessels


Bacteria are considered plant because they

  • are green in colour

  • have rigid cell wall

  • have chlorophyll

  • have stomata


In which one of the family formations of endosperm doesn’t take place?

  • Orchidaceae

  • Cactaceae

  • Ranunculaceae

  • Malvaceae


In coconut, the liquid endosperm is formed because

  • Karyokinesis is not followed by cytokinesis

  • Karyokinesis is followed by cytokinesis

  • Formation of the liquid endosperm is not dependent upon karyokinesis and cytokinesis

  •  None of the above


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Read the following statements and choose the correct option.

I. Leptosporangiate development of sporangium is found in all membersPteropsida.

II. Seed habit is shown by sellaginella.

III. Gnetum leaves are monomorphic and pinnately compound.

IV. Sporic meiosis is found in VolvolxChalmydomonas and Ulothrix.

Choose the correct option.

  • I and IV

  • I and II

  • I, II and IV

  • All of these


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