Flower Dissection Activity

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FlowerDissectionActivity
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There are two types of plants

• plants with seeds and
• plants without seeds.

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Plants without Seeds
Mosses
Liverworts
Horsetails
Ferns
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How do plants reproduce without seeds?

• Plants without seeds reproduce through spores
  that are released into the air.

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Life Cycle of Ferns
The spores are both male and female, so
reproduction is taking place.
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There are two types of reproduction.

• Type one Requires one cell through divisions of
  mitosis.
• Type two Requires two cells, a male cell and a
  female cell, each with half the DNA required to
  make the new organism.

Potato Sprouts
Flowering plants with seeds
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Plants with Seeds
Gymnosperms
Angiosperms
Pine trees, or conifers, are an example of a
plant that reproduces by seeds but without
flowers.
Poppies are a type of flowering plant that
reproduce by seeds made by flowers.
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Flowering Plants

• A flowering plant has both male and female parts.

The female part is called the pistil.
The male part is called the stamen.
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• Stamen The male structure of a flowering plant

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• Anther the structure located on top of the
  stamen and carries the pollen

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Pollen

• Pollen is a powdery substance, usually orange or
  yellow in color, that gets carried by
  pollinators.

.
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Pollinators

• A pollinator is something that moves pollen from
  the male parts to the female parts.

Can you name any other pollinators?
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• Filament a thread-like part that holds up the
  anther

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• Pistil the female structure of a flowering plant

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• Stigma the sticky surface on the top of the
  pistil it traps and holds the pollen

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• Style the tube-like structure that holds up the
  stigma

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• Ovary the plant part at the bottom of the flower
  that has ovules inside (this turns into the fruit
  and seeds we eat)

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Petal the colorful flower parts that surround
the reproductive structures
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• Sepal the green petal-like parts at the base of
  the flower they help protect the bud when it
  develops

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• Perfect flowers that have both male and female
  parts (ex. Roses, lilies, and pea plants)

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• Pollination when pollen moves from the male
  parts to the female parts

Watch a bee pollinate a passion flower
at http//www.youtube.com/watch?vAYwAOmcNcCk
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Illustrate the Pollination Process

1. First, draw two flowers and label the parts of
   the male and female structures.

2. Then, watch the pollination animation at
http//smithsonlineclassroom.com/media/pollinatio
n.mov and illustrate what you see.
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Good-bye!