Flowers, pollination, and double fertilization

1. AGHITS LAILY RIZQIYAH
ALIEF SELLA FITRI NAVA
NABILLA
ALYANA MAHDAVIKIA ROSYADA
YUSUF
NUR SULISTIYOWATI
WAHYU NENGSIH
Group 2 Offering H

2. FLOWERS,
POLLINATIO
N, AND
DOUBLE
FERTILIZATI
ON

3. FLOWER STRUCTURES AND
FUNCTIONS
To attract the insect
Which enclose and protect
unopened floral buds

4. MALE REPRODUCTIVE PART
stamen
anther
Anther is the head part of stamen which contains of
microsporangia (pollen sacs) and microspore to
produce pollen
microspore
microsporangia
filament
Filament is a stalk of the stamen

5. FEMALE REPRODUCTIVE PART
carpel stigma
style
ovary ovule
style is a stalk of the carpel
Stigma is the head part of carpel and have a
sticky structure to capture the pollen
Ovule becomes the seeds when sperm cells
fertilize the egg cells. This part is the place to
product the megaspore
Ovary is the part that become a fruit and
contains of one or many ovule

7. When we see the completeness of the flowers, I‘ts divide two parts
Complete flowers
1
Complete flowers have 4 main parts
and have both male and female
parts
Example : tulip and liliy flowers
incomplete flowers
2
Called incomplete flowers if
flowers lack one or more of the
four main parts
Example : zucchini bears

8. FLOWERS POLLINATIONMost angiosperm rely on biotic and abiotic pollinating that can move the pollen from anther from
one flower to the stigma on another flower. Biotic pollination is usually carried out by animals,
while abiotic pollination is carried out by wind and water
Pollination by wind
1 flowers with wind pollination usually have small
characteristics, not have brightly colored, not scented,
and light so that pollen can be easily carried by the wind
Pollination by bees
2 Pollinating bees depend on nectar for food. Typically
bee pollinated flowers have sweet fragrance and have
ultraviolet to guide insect to find the nectar
Example : dandelion

9. Pollination by butterflies and moth
3
butterflies and moths can detect the smell of a fragrant flower. butterflies like brightly colored
flowers, while moths like yellow and white flowers that can be seen when moths work at night
Pollination by bats
4
Bat-pollinated flowers are lightcolored and aromatic, attracting their nocturnal pollinators. The lesser
long-nosed bat (Leptonycteris curasoae yerbabuenae) feeds on the nectar and pollen of cactus
flowers. In feeding, the bats transfer pollen from plant to plant.

10. Pollination by flies
5
Many fly-pollinated flowers are reddish and fleshy,
with an odor like rotten meat. In the process, the
blowflies become dusted with pollen that they
carry to other flowers.
Pollination by birds
6
Flowers pollinated by birds have a large
shape with bright red or yellow but have a
slight odor. besides, it has a petal that is
fused and bent in shape so that it is enough
for a bent bird's beak

11. DOUBLE FERTILIZATION