Study the following statements and choose the correct option.
$I -$ Tapetum nourishes the developing pollen grains.
$II-$ Hilum represents the junction between ovule and funicle
$III-$ In aquatic plants such as water hyacinth and water lily, pollination is by water:
$IV-$ The primary endosperm nucleus is tripoid.
$I \;and \;II\; are \;correct \;but \;III \;and \;IV \;are\; incorrect$
$I, II \;and \;IV \;are \;correct\; but \;is \;incorrect$
$II, \;III \;and \;IV \;are \;correct \;but \;I \;is \;incorrect$
$I \;and \;IV\; are\; correct \;but\; II\; and \;III \;are\; incorrect$
Arrange correct pair
Column $-I$ | Column $-II$ |
$(1)$ Pollination by water | $(a)$ Grass |
$(2)$ Pollination by wind | $(b)$ free-nuclear endosperm |
$(3)$ coconut water | $(c)$ Guava |
$(4)$ Fleshy fruit | $(d)$ Hydrilla |
$(e)$ cellular endosperm |
Differentiate between:
$(a)$ Integument and testa;
$(b)$ Perisperm and pericarp.
Name the common function that cotyledons and nucellus perform.
Which of the following statements is not correct ?
The plant parts which consist of two generations one within the other
$(a)$ Pollen grains inside the anther
$(b)$ Gemninated pollen grain with two male gametes
$(c)$ Seed inside the fruit
$(d)$ Embryo sac inside the ovule