life cycle plant

8/8/2019 Life Cycle Plant

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THE LIFE CYCLE

OF PLANTS

Flowering Plants reproduceby producing seeds (sexual

reproduction) or by

vegetative reproduction,

(cuttings, bulbs etc)


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The corolla is

made of the

petals theyattract

pollinators

The stamens arethe male part of

the flower they

are made of the

anther and the

filament. The

anther makes the

pollen.

The carpel is the

female part and made

of the stigma, style

and ovary. In theovary are ovules

which have the

female egg cell.


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Flowers come in many shapes, colours and sizes.

They are usually specially adapted to particulartypes of pollination.


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These kinds of

flower are wind

pollinated


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Australian Honey

Possum

The Australian

honey possum isone of the only

mammal species,

other than bats,

known to eatnectar and pollen

as the mainstay of

its diet.


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Brazilian Birthwort

The Brazilian birthwort uses

insects as pollinators. The putrid

odor of this specieslike that ofrotting fleshespecially attracts

flies, which enter the plant and

become trapped overnight. While

they are trapped, they becomecompletely dusted with pollen.

They escape the following day as

the plant withers and are

attracted to other Brazilian

birthworts, which they theninadvertently pollinate as they

enter and again become trapped.


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Worker Honey Bee in the Field

As they fly from flower to flower, worker honey bees collect pollen grains

and pack them onto their hind legs in special hair-fringed pockets known as

pollen baskets (shown here holding a glob of yellow pollen on the hind leg).

Nectar, the sweet liquid produced by flowers, is sucked into the honeystomach, an internal storage sac. In the hive, field bees deposit their pollen

pellets into empty storage cells of the comb and regurgitate nectar to

waiting hive bees. The hive bees mix some nectar with the pollen to make

bee bread, a spoilage-proof larval food, and gradually concentrate the rest

of the nectar into honey by dehydration.


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Butterfly Pollinating a Flower

Many species of butterflies eat plant nectar. When these butterflies land

on a series of flowers in search of food, they brush their bodies against

both male and female floral organs, inadvertently transferring pollen from

one flower to another.


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Lawson Cypress Branch

The Lawson cypress, like all

other coniferous trees, is

wind pollinated. The tinymale flowers are located at

the ends of the small

branchlets, where the wind

can easily pick up and

distribute their pollen.


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Rose Hip

When rose hips become ripe, they

change in color from green to red.

Attracted by the red color, both birds

and other mammals eat the rose hipsas a part of their diet. The individual

seeds of the rose hip have a tough

outer skin that allows them to pass

through the digestive tract of an animalundigested, ensuring successful wide-

ranging dispersal.


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LesserBurdock Plant

The lesser burdock plant has a fruit that is encased in a burr covered with

hooks. These hooks enable the burr to easily attach to the fur of passing

animals, which ensures wide-ranging dispersal of the seeds.


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life cycle plant

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