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Copy of Parts of the Flower

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by

Alicia LePage

on 16 October 2013

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Transcript of Copy of Parts of the Flower

Parts of the Flower...
Introduction
Flower is a condensed shoot which is specialized to carry out sexual reproduction. The parts of the flower are:
1. Pedicel ( Peduncle)
2. Thalamus (Receptacle)
3. Sepals (Calyx)
4. Petals (Corolla)
5. Stamens (Androceium)
6. Carpels (Gynoecium)

1. Pedicel (Peduncle)
A pedicel is a short flower stalk in an inflorescence or cluster of flowers. Pedicels hold individual flowers in place.

The function of pedicels is to expose flowers to the sun and wind and put them in a position so their aroma and color attracts pollinating insects more easily.
2. Thalamus (Receptacle)
Thalamus is the broad base of the flower on which the other organs of the flower rest. The thalamus bears four types of organs - sepals, petals, carpels and the stamens.
3. Sepals (Calyx)
They are the green outermost leaf like floral organs which protect the flower in the bud stage. In the mature stage they provide support to other floral organs
4. Petals ( Corolla)
Petals are coloured accessory floral organs which lie above the sepals.
Thay may also be fragrant. Petals attract insects to flowers for pollination. They may also provide protection to centrally placed reproductive organs.
Stamens (Androceium)
Stamens are the main reproductive organs of the flowers. Each stamen has a slender stalk called filament. There is a terminal knob like swelling called the anther. The anther have two lobes that are joined by a connective. Each lobe has 2 pollen sacs so that there are four pollen sacs in an anther.
Carpels (Gynoecium)
Carpels form the central female reproductive organs of the flowers. A flower with one carpel is called monocarpous. It is called polycarpous if a number of carpels are present.

Each carpel or pistil has a basal swollen ovary, a stalk like style, and a terminal sticky part called stigma.
Identify the parts of the flower and state their function
Pollen grains are transferred from the ____ to the ____
Differentiate between the two types of Flowers
Why do flowers that bloom at night have a stronger fragrance than those that bloom during the day
What is the function of the stamen in the flower
Done By - Irene Mary Jacob
Thank You
Give a brief sketch on the different types of pollination
Name the different agents of pollination
Identify the type of pollination
http://www.sciencekids.co.nz/gamesactivities/lifecycles.html

http://www.purposegames.com/game/65f40ee5ef
Full transcript