Plant Kingdom

Multiple Choice Questions

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A protein rich green alga is :

  • Chlorella

  • Spirulina

  • Spirogyra

  • Ulothrix

A.

Chlorella

Chlorella is a protein rich unicellular, green algae which is commonly being used as health food in Japan and Taiwan.

Spirulina is a blue-green algae which have high protein content and high growth rates. Both Chlorella and Spirulina are used to make SCP or Single Cell Protein.

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    Pratonema is found in the life cycle of:

    • Spirogyra

    • Rhizopus

    • Escherichia

    • Funaria

    Answer

    Mosses are attached to substratum by :

    • roots

    • capsule

    • rhizoids

    • cistron

    Answer

    Prothallus of fem has :

    • antheridia and archegonia on lower surface

    • antheridia and archegonia on upper surface

    • antheridia on upper surface and archegonia on lower

    • antheridia on lower surface and archegonia on upper surface

    Answer

    Male cone of Pinus possesses :

    • mega sporophylls

    • microsporophylls

    • anthers

    • ligules

    Answer
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    Rarely among angiosperms the pollen grains influenced the endosperm. This is called as :

    • Metaxenia

    • Nemec phenomenon

    • Xenia

    • Mesogamy

    Answer

    A bryophyte which harbours a nitrogen fixing blue-green alga in its thallus is :

    • Pogonatum

    • Riccia

    • Marchantia

    • Anthoceros

    Answer

    Agar-agar commonly used in bacterial cultures and medication is obtained from :

    • Sargassum 

    • Gelidium

    • Ulothrix

    • Ulva

    Answer

    A plant having seeds but lacking flowers and fruits belong to

    • pteridophytes

    • mosses

    • ferns

    • gymnosperms

    Answer
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    Pigments common to all algae are

    • chlorophyll- a and phycobilins

    • chlorophyll- a and carotenoids

    • chlorophyll- a and chlorophyll- b

    • chlorophyll- b and carotenoids

    Answer
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