Structure and function of flowers

The male gametes in flowers are the pollen, while ovules are the female gametes. Pollen from one plant fertilizes the ovules of another plant through flowers, in the cross-fertilisation method of reproduction.
A flower's male parts are the Stamens and female parts are the carpels. Though, most plants produce flowers that have both male and female reproductive parts, separate male and female flowers bloom in some plants.
Study the parts of a simple flower with reference to the location and function of the parts given in the following details.
 

Sepals

Generally green colored exterior protective coverings of a flower.

Petals

Mostly colored to attract pollinating insects and are framed by sepals.

Nectar

The sweet liquid at the base of petals that attracts insects.

Stamens 

 

Pollen producing male organs that include the anther and supporting filament.

Carpels

Female organs that produce ovules inside the ovary, which is attached to the style and stigma.