Parts of the Flower

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Flower Parts

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Diagram of Flower
 
Animation of Fertilization
 
Petal- a modified leaf that is part of a flower; also called corolla.
Petals are used to attract insects into the flower, they may have guidelines on them and be scented.
 
Filament- The stalk that bears the anther in a stamen.
This is the stalk of the Anther.
Stigma- The receptive apex of the pistil of a flower, on which pollen is deposited at pollination.
Is covered in a sticky substance that the pollen grains will adhere to.
 
Anther- The part of the stamen that contains pollen; usually borne on a stalk
The Anthers contain pollen sacs. The sacs release pollen on to the outside of the anthers that brush against insects on entering the flowers. The pollen once deposited on the insect is transferred to the stigma of another flower or the same flower. The ovule is then able to be fertilised.
Sepal- One of the separate, usually green parts forming the calyx of a flower.
Sepals protect the flower whilst the flower is developing from a bud.
 
Peduncle- The stalk that attaches a single flower, flower cluster, or fruit to the stem.
 
Thamalus-
 
Style- The usually slender part of a pistil, situated between the ovary and the stigma
 
The style raises the stigma away from the Ovary to decrease the likelihood of pollen contamination. It varies in length.
 
Ovules- The part of a plant that contains the egg cell and develops into the seed after fertilization.
The Ovule is like the egg in animals and once fertilisation has taken place will become the seed.
Ovary- the lower part of a pistil, containing the ovules
This protects the ovule and once fertilisation has taken place it will become the fruit.
Roots- roots The roots help provide support by anchoring the plant and absorbing water and nutrients needed for growth. They can also store sugars and carbohydrates that the plant uses to carry out other functions. The roots are what carries the water and nutrients needed for plants to grow.
 
 
 
stemsStems- carry water and nutrients taken up by the roots to the leaves. Then the food produced by the leaves moves to other parts of the plant.  Stems also provide support for the plant allowing the leaves to reach the sunlight that they need to produce food.
 
Leaves- are the food making factories of green plants. Leaves come in many different shapes and sizes. Leaves are made to catch light and have openings to allow water and air to come and go.
 

The fruit is the ripened ovary of a plant containing the seeds. After fertilization, the ovary swells and becomes either fleshy or hard and dry to protect the developing seeds. Many fruits help seeds spread (maple seeds). Many things we call vegetables are really fruits such as tomatoes, cucumbers, and beans.

 Examples of Fruits or Ripened Ovaries

Every seed is a tiny plant (embryo) with leaves, stems, and root parts waiting for the right things to happen to make it germinate and grow. Seeds are protected by a coat. This coat can be thin or thick and hard. Thin coats don't protect the embryo well. But thick coats can let the embryo survive some tough conditions.

Seeds are a plant's way of getting from one area to another by either wind, water or animals.

Diagram of Seed Coat, Embryo, Cotyledon

Sunshine State Standards

The Nature of Matter

Standard 2:

The student understands the basic principles of atomic theory. (SC.A.2.1)

1. recognizes that many things are made of smaller pieces, different amounts, and various shapes.

Processes of Life

Standard 1:

The student describes patterns of structure and function in living things. (SC.F.1.1)

5. compares and describes the structural characteristics of plants and animals.

http://www.fldoestem.org/Uploads/1/docs/Science%20Standards%20Both-FINAL%203-20-08.pdf