Sexual Reproduction in plants

Sepals

Green, leaf-like structures that protect the flower bud before it opens.

Petals

Brightly colored and scented parts that attract insects for pollination.

Stamens

The male reproductive organs of a flower, consisting of the filament and anther.

Filaments

Thin stalks that support the anthers.

Anthers

The top part of the stamen that contains pollen grains (male gametes).

Carpels (Pistils)

The female reproductive organs of a flower consisting of the stigma, style, and ovary.

Style

The stalk-like structure that connects the stigma to the ovary.

Stigma

The sticky, receptive surface of the flower where pollen grains land.

Ovary

The base of the carpel that contains the ovules (female gametes).

Ovules

The structures located inside the ovary that contain eggs to develop into seeds after fertilization.

Pollination

The process of transferring pollen grains from an anther to a stigma.

Self-Pollination

Occurs when pollen from the anther of a flower lands on the stigma of the same flower or another flower on the same plant.

Cross-Pollination

The transfer of pollen grains from the anther of a flower on one plant to the stigma of a flower on another plant of the same species.

Fertilisation

When a pollen nucleus fuses with a nucleus in an ovule, resulting in the formation of a zygote.

Insect-Pollinated Flowers

Flowers that are adapted to rely on insect pollinators, characterized by bright colors, scents, and sticky pollen.

Wind-Pollinated Flowers

Flowers that release large amounts of light, small pollen grains and are adapted to be pollinated by wind.

Pollen Tube

The structure that develops from a pollen grain after pollination, carrying the male gamete to the ovule.