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Flower Dissection 2022

The document diagrams and describes the key parts of a flower, including the petals, sepals, stamen, filament, anther, carpel/pistil, stigma, style, ovary, and ovule. It also discusses the processes of animal pollination, where pollen is carried by animals from one flower to another, and wind pollination, where pollen is dispersed by the wind. Pollination occurs when pollen produced in the anther is transferred to the stigma of another flower, then moves down the style to fertilize the ovule in the ovary, resulting in the development of seeds and fruit.

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Sydney Biondo
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179 views15 pages

Flower Dissection 2022

The document diagrams and describes the key parts of a flower, including the petals, sepals, stamen, filament, anther, carpel/pistil, stigma, style, ovary, and ovule. It also discusses the processes of animal pollination, where pollen is carried by animals from one flower to another, and wind pollination, where pollen is dispersed by the wind. Pollination occurs when pollen produced in the anther is transferred to the stigma of another flower, then moves down the style to fertilize the ovule in the ovary, resulting in the development of seeds and fruit.

Uploaded by

Sydney Biondo
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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FLOWER DISSECTION

2022
Diagram of a Flower
aka Carpel
Petal

• Petal: Petals
are used to
attract insects
into the
flower, they
may have
guidelines on
them and be
scented.
Sepal
Sepal:
Sepals
protect the
flower while
the flower is
developing
from a bud.
Stamen

The filament
and the
anthers are
collectively
known as the
stamen or the
male parts of
the plant.
Anther
Anther: The
Anthers
contains
pollen sacs.
The sacs
release pollen
on to the
outside of the
anthers.
Stamen
Filament: This is the stalk of the Anther.
Carpel / Pistil
• The stigma, style,
ovary, and ovule are
often known
collectively as the
Carpel (or Pistil) or
female parts of the
flower.
Stigma
• Stigma: Is covered in a sticky substance
that the pollen grains will adhere to.
Style

• Style: The style


raises the stigma
away from the ovary
to decrease the
likelihood of pollen
contamination. It
varies in length.
Ovary

• Ovary: This
protects the ovule;
once fertilization
has taken place it
will become the
fruit.
Ovule
• Ovule: The Ovule is
like the egg; once
fertilization has
taken place will
become the seed.
Types of Pollination
• Animal pollination: On animals, the pollen is
picked up on a part of the body and is carried
to another flower.
– Bright flowers and sweet nectar attract animals.

• Wind pollination: the pollen is carried away


and moves by wind. Only a small fraction of
pollen reaches another flower of that species
and so it is able to produce a seed.
– Lots of pollen is made to ensure flowers get
fertilized.
What is Pollination?
Write an explanation of pollination IN
COMPLETE SENTENCES, using all of the
key parts of the flower on this sheet (you
can skip petal & sepal).
What is Pollination?
• Pollen produced on the anther must
move to another flower, and land on a
part called the stigma. Stigma captures
pollen on sticky secretions and is
transported down the style in pollen
tubes to the ovary where the ovule is
fertilized. The fertilized egg develops
into a seed and the whole ovary matures
into a fruit.

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