Transcript Male Parts Anther

Plant Structure and Function
Is It a Stem, Leaf, Root, Flower, Fruit or
Seed?
Fruit/Vegetable
Broccoli
Cabbage
Carrot
Celery Stalk
Corn Kernel
Garlic
Onion
Potato
Tomato
Zucchini
Part of Plant
Is It a Stem, Leaf, Root, Flower, Fruit
or Seed?
Fruit/Vegetable
Part of Plant
Broccoli
Cabbage
Carrot
Celery Stalk
Flower
Flower
Root
Stem
Corn Kernel
Garlic
Onion
Seed
Root
Root
Potato
Tomato
Zucchini
Root
Fruit
Fruit
Plant Body
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Shoot system =
leaves + stem
Root system
Plant Body
Leaf = blade + petiole
Functions
Exposes surface to sunlight
Major site of photosynthesis
Conserves water
Provides for gas exchange
Blade
Petiole
Stoma =
opening in the leaf
for gas exchange,
water evaporation
Conserves water
Photosynthesis
Structures of the Leaf
Transports water
and sugar to stem
and roots
Plant Body
Stem:
Functions
Holds leaves up to light
Transports substances
through vascular tissue
Xylem conducts water
and minerals
Phloem transports
sugar
Plant Body
Root
Functions
Anchors plant in soil
Takes up water and
minerals from soil
Flowering Plant
Reproduction
• Flowers are modified
leaves, specialized
for reproduction.
• A complete flower
has both male and
female parts
Flower
Mitosis
Meiosis
Mitosis
Pollen
grains
Ovule
• Angiosperms are seed
bearing & fruit producing
or flowering plants.
Flowers
• Come in many different shapes, sizes
and colors, but they all have the same
functions:

help plants reproduce.

where seeds are made.
Flowers are the sexual reproductive
organs of plants.
All flowers, regardless of variety, have
the function of seed formation and the
production of more plants.
Flowers contain both non-reproductive
and reproductive structures.
The parts of a flower
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Sepals protect the bud until it opens.
Petals attract insects.
Stamens make pollen.
Carpels grow into fruits which contain
the seeds.
Male Parts
Anther
This is the part of the stamen that produces and
contains pollen.
Filament
This is the fine hair-like stalk
that the anther sits on top of.
Stamen
This is the male part of the flower. It is made up
of the filament and anther, it is the pollen
producing part of the plant. The number of
stamen are usually the same as the number of
petals
Female Parts
Stigma
It is the sticky surface at the top of the pistil . It
traps and holds pollen and starts the
fertilization
Style
The tube like structure that hold up the stigma.
Ovary
The part of the plant, usually at the base of the
flower, that has the seeds inside and turns into the
fruit that we eat.
Ovule
The structure of the flower that develops into a
seed when fertilized. (eggs)
Carpe/Pistil
The carpel is the female reproductive organ of a flower. It
makes seeds. It is made up of the stigma, style and ovary.
There may be more than one carpel in a flower.
Pollination
• Pollen is the
powdery grains that
contain male
reproductive cells of
most plants
produced by anther.
• Flowering plants use
the wind , insects
bats, birds and
mammals to transfer
pollen.
• When pollination occurs, pollen moves from
the male parts to the female parts.
• Pollen grains land on the stigma and a tiny
tube grows from it and down the style into the
ovary.
• The fertilized ovule becomes the seed and the
ovary become the fruit