PLANT REPRODUCTION
IMPORTANT POINTS TO CONSIDER
Evolution requires cross pollination rather than self pollination
Plants are designed to maximize cross pollination
Flowers are designed to produce seeds to perpetuate (continue/
produce more) flowers
, STRUCTURE OF THE FLOWER
The flower is the organ of sexual
reproduction
Advantages of sexual reproduction:
It introduces genetic variation
It ensures the survival of the species
There's a less chance of spread of
disease
ALL DICOT FLOWERS HAVE THE FOLLOWING:
Calyx made of sepals
Petals to attract pollinators
Female parts: stigma, style and ovary
Male parts: anther and filament
WHORLS
1. Calyx - sepals
Perianth of tepals
2. Corolla - petals
3. Androecium - male
4. Gynaecium - female
IMPORTANT POINTS TO CONSIDER
Evolution requires cross pollination rather than self pollination
Plants are designed to maximize cross pollination
Flowers are designed to produce seeds to perpetuate (continue/
produce more) flowers
, STRUCTURE OF THE FLOWER
The flower is the organ of sexual
reproduction
Advantages of sexual reproduction:
It introduces genetic variation
It ensures the survival of the species
There's a less chance of spread of
disease
ALL DICOT FLOWERS HAVE THE FOLLOWING:
Calyx made of sepals
Petals to attract pollinators
Female parts: stigma, style and ovary
Male parts: anther and filament
WHORLS
1. Calyx - sepals
Perianth of tepals
2. Corolla - petals
3. Androecium - male
4. Gynaecium - female
