Page 2 - 2.Lesson Notes -Sexual mode of reproduction I

Filament:- The stalk of stamen is called the filament.

Anther:- The swollen top of stamen is called the anther.

 It is a two-lobes structure.
 It is surrounded by a double-layered wall which
is tough and resistant.
 It contains minute pollen grains and stores them.
 The male gametes are produced inside the pollen grains.

4. Pistil or carpel:- The innermost whorl has the female sex organ of a flower.

It consists of three parts:- Ovary, style, and stigma.

 Stigma:- The top part of the pistil.
It receives the pollen grains from the anther of
stamen during pollination.

 Style:- It is a tube that connects the stigma to the
ovary.

 Ovary: - The swollen part at the bottom of a pistil is
called ovary. The ovary contains ovules and stores
them. The egg cell or female gametes are produced inside the ovules.

Structure of a flower