Sexual Reproduction in Plants

Reproduction

is the method by which organisms produce offspring with similarity to the par

Hermaphrodites

have “perfect” flowers which means each flower has both male and female sex organs

Imperfect

their male and female organs are located in separate flowers

Petal

Colorful, modified leaves

Sepal

Modified leaves that protect and enclose the flower especially in the bud stage

Calyx

all sepals

Corolla

all petals

Stigma

hairy part that receive pollen grains

Ovary

contains the ovules

Anther

contains the pollen grains

Filament

holds the anther

Stamen

Anther + Filament

Perianth

Corolla + Calyx

Pollination

the transfer of pollen grains from the anther to the stigma of a flower; first stage

Self Pollination

the pollination of a flower by pollen from the same flower or from another flower on the same plant

Cross Pollination

when pollen grains are transferred to a flower from a different plant

Fertilization

the union of male and female sex cells (gametes); second stage

Endosperm

part of the seed that stores reserve food

Seed Coat

part of the seed that protects it

Embryo

part of the seed that develops into a new plant

Seed Dispersal

the process in which seeds are carried away from a parent plant; third stage

Germination

the process when the seed breaks through the seed coat and grows to form a new plant; fourth stage

Pistil

stigma + style + ovary

Sexual Reproduction

it involves the fusion of sex cells or gametes