FLOWERS

STAMEN PISTIL ATTRACT

INSECTS AND ANIMAL

POLLINATORS

_ _ _ _ _ _

PROTECT THE FLOWER

MEANWHILE IS A BUD.

_ _ _ _ _ _ _ _ _ __ _ _ _ _ _

IN THE ANTHER IS PRODUCED THE

POLLEN

STIGMA: SITE OF

POLLINATION

PRODUCE POLLEN GRAINS

INSIDE AN OVARY, EGG

CELLS: OVULES

OVARY IS THE BASE OF

PISTIL

_ _ _ _ _ _S E P A L S

_ _ _ _ _ _P E T A L S

_ _ _ _M A L E

_ _ _ _ _ _MF E ELA

FLOWERS

STAMEN PISTIL ATTRACT

INSECTS AND ANIMAL

POLLINATORS

PETALS

PROTECT THE FLOWER

MEANWHILE IS A BUD.

MALE FEMALESEPALS

IN THE ANTHER IS PRODUCED THE

POLLEN

STIGMA: SITE OF

POLLINATION

PRODUCE POLLEN GRAINS

INSIDE AN OVARY, EGG

CELLS: OVULES

OVARY IS THE BASE OF

PISTIL

A flower is pollinated when a pollen grain lands on its

stigma.Each carpel grows into a fruit which contains the

seeds.

POLLINATIONOrganize the following words : anther - to the – poller grains

– from the – stigma – of - transfer

POLLINATION IS THE TRANSFER OF POLLEN GRAINS FROM THE AHTHER TO THE STIGMA.

WELL DONE!

Some flowers secrete a sugary liquid(nectar), which pollinators

use as food.

Example:

https://www.youtube.com/watch?v=MQiszdkOwuU

As an animal explores these flowers, pollen sticks on its body.

When animals wanders away, it tranfers the pollen to the stigma of

another flower.

https://www.youtube.com/watch?v=PKyC2GZd2dE

Fertilization

Pollen grain

Stigma

The tissue of the pistil Ovule

zygote

Two sperms

Egg cellsA pollen tube

reaches

Growing throughinto contains

containsTr

avel

thro

ugh

Fuses with

To form

#1

#2

Two nuclei

insidefuses

Pollen grains germinate on the stigma, growing down the style to reach an ovule.

Fertilized ovules develop into seeds.The carpel enlarges to form the flesh of the fruit and to protect the ovary.

POLLINATION IS NOT THE EQUIVALENT OF FERTILIZATION.

FERTILIZATION INVOLVES THE UNION OF EGG AND SPERM AND MAY NOT OCCUR UNTIL WEEKS OR

MONTHS AFTER POLLINATION HAS TAKEN PLACE.

FERTILIZATION CAUSES RAPID CHANGES TO OCCUR IN FLOWER.

1. The ovule develops into a seed, often with a tough coat protecting the developing plant and its supply.

2. The ovary grows larger and develop into a fruit(enlarged ovary of plant that contains seeds)

Flowering plants use the wind, insects, bats, birds and mammals to

transfer pollen from the male (stamen) part of the flower to the female (stigma) part of the flower.

Seeds dispersal:

Seeds are dispersed in many different ways:WindExplosionWaterAnimalsBirdsScatter

Some seeds are hidden in the ground as a winter store.Some fruits have hooks on them and cling to fur or clothes.

Birds and animals eat the fruits and excrete the seeds away from the parent plant.

GERMINATION IS:The growth of the root through the seed coat,

GERMINATION IS:The growth of the root through the seed coat,

WEB PAGES: http://fr.slideshare.net/Lolit2552/pollination-fertilisation-and-germination

https://www.wethersfield.k12.ct.us/uploaded/schools/Wethersfield_High_School/Norris/Reprod2.pdf

http://fr.slideshare.net/Lolit2552/pollination-fertilisation-and-germination