Give differences : Stamen and Pistil
Stamen | Pistil |
$(1)$ It is a male reproductive organ. | $(1)$ It is female reproductive organ. |
$(2)$ It is a unit component of Androecium. | $(2)$ It is a unit component of Gynoecium. |
$(3)$ It is known as microsporangium. | $(3)$ It is known as Megasporangium. |
$(4)$ Its structure is composed of anther filament and connective like parts. | $(4)$ It has parts like ovary, style and stigma. |
$(5)$ It produces pollen grains. | $(5)$ It produces megaspores. |
Differentiate between:
$(a)$ Integument and testa;
$(b)$ Perisperm and pericarp.
Definations / Explanation :
$1.$ Nutritive layer
$2.$ Funicle
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 |
List the changes observed in an angiosperm flower subsequent to pollination and fertilisation.
Which of the following statements is not correct ?