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Question

The innermost wall layer of microporangium is the tapetum. Cells of tapetum possess dense cytoplasm and generally have more than one nucleus. Tapetum

Vedclass · Accepted Answer

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Vedclass · Answer

The innermost wall layer of microporangium is the tapetum. Cells of tapetum possess dense cytoplasm and generally have more than one nucleus. Tapetum nourishes the developing pollen grains. The body of the ovule fuses with funicle (stalk of ovule) in the region called hilum. Thus, hilum represents the junction between ovule and funicle. The primary endosperm nucleus is triploid $(3 n)$ as it is the product of triple fusionIn majority of aquatic plants such as water hyacinth and water lily, the flower emerge above the level of water and are pollinated by insects or wind as in most of the land plants.

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

Similar Questions

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

Similar Questions

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

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.

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