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In a cereal grain the single cotyledon of embryo is represented by

  • coleorhiza

  • scutellum

  • prophyll

  • prophyll


A.

coleorhiza

In a cereal grain (e.g., wheat), the single cotyledon of embryo is represented by the scutellum. Scutellum is specialized for nutrient absorption from the endosperm.
Coleoptile is a modified ensheathing leaf that covers and protects the young primary leaves of a grass seedling.
Coleorhiza is a sheath-like structure found on the radicle which covers and protects it during the growth into the soil.

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An enzyme that can stimulate germination of barley seeds is

  • α-amylase

  • lipase

  • protease

  • protease


Double fertilization is exhibited by

  • Gymnosperms

  • Algae

  • Fungi

  • Fungi


Attractants and rewards are required for

  • Anemophily

  • Entomophily

  • Hydrophily

  • Hydrophily


A dioecious flowering plant prevents both:

  • Autogamy and xenogamy

  • Autogamy and geitonogamy

  • Geitonogamy and xenogamy

  • Geitonogamy and xenogamy


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