Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
Plant Reproduction
• All students: copy the white text.
• Honors students: ALSO copy the bold yellow text
• The italicized...
MANY KINDS OF PLANTS...
Yes, copy this diagram – label it too!
Angiosperms (flowering plants)
• Plants that protect their seeds within the body
of a fruit.
• Make up ¾’s of all plants, ...
Which plants make fruit?
• Orange tree?
• Avocado tree?
• Pumpkin plant?
• Zucchini plant?
• Tomato plant?
• Wheat plant?
...
The Stamen:
Male Reproductive Structure
Consists of two parts:
Anther and Filament
The filament is a stalk
that supports...
The Pistil:
Female Reproductive Structure
Consists of the stigma,
style and ovary
The sticky stigma
receives the pollen
...
Male Parts Female Parts
Stamen consists of:
1. Anther
2. Filament
Pistil consists of:
1. Stigma
2. Style
3. Ovary (ovules ...
Reproductive Structures
• Petals: colorful
structures that attract
pollinators.
• Sepals: surround and
protect the flower ...
Sepals: protect immature buds
Pollination
Wind, insects or other
animals transfer pollen
from the anther of one
flower to the stigma of
another
Flower...
Pollination
Wind Pollination: Dull,
scentless
flowers with reduced petalsBees/Butterfly Pollination: Bright
color, nectari...
Tip of a tulip stamen
with many grains of
pollen.
Scanning electron
microscope image of
pollen grains from a
variety of common
plants: sunflower,
morning glory, prairie
hol...
• Pollen Grain • Anther Sac
Pollen grains contain two haploid cells produced through
meiosis.
1- The Tube cell – will grow...
This slide is FYI –
copy whatever
you’d like
Seed and Fruit Development
After fertilization,
the petals and
sepals fall off
flower
Ovary “ripens”
into a fruit
The ovul...
Seed Dispersal Mechanisms-
Allow plants to colonize new areas and avoid
shade of parent plant
Wind Dispersal - Flight mech...
Gravity Dispersal -
Heavy nuts fall to
ground and roll
ex. acorns
Water Dispersal - Plants
near water create floating
frui...
Upcoming SlideShare
Loading in …5
×

Plant Reproduction Notes

471 views

Published on

I made this slideshow for my honors 7th grade Life Science class. It's a work in progress. It's heavy on angiosperms, but needs more information about gymnosperms and seedless plants. 7th grade, anther, biology, cones, egg, fertilization, gymnosperm, life science, ovules, pistil, plant reproduction - angiosperms, pollen dispersal, pollen grain, pollen tube, pollination, science, stamen, stigma, style

Published in: Education
  • Be the first to comment

  • Be the first to like this

Plant Reproduction Notes

  1. 1. Plant Reproduction • All students: copy the white text. • Honors students: ALSO copy the bold yellow text • The italicized green text is FYI – read it – copy it if you’d like.
  2. 2. MANY KINDS OF PLANTS...
  3. 3. Yes, copy this diagram – label it too!
  4. 4. Angiosperms (flowering plants) • Plants that protect their seeds within the body of a fruit. • Make up ¾’s of all plants, including: –Trees, shrubs, herbs, grasses, water plants…
  5. 5. Which plants make fruit? • Orange tree? • Avocado tree? • Pumpkin plant? • Zucchini plant? • Tomato plant? • Wheat plant? • THEY ALL MAKE FRUIT (Fruit is the edible part that surrounds seeds). Copy
  6. 6. The Stamen: Male Reproductive Structure Consists of two parts: Anther and Filament The filament is a stalk that supports the anther The anther is where meiosis occurs to produce pollen Each pollen grain contains sperm cells. Copy
  7. 7. The Pistil: Female Reproductive Structure Consists of the stigma, style and ovary The sticky stigma receives the pollen from the anther The pollen grows a tube down through the style Each ovule contains an egg cell. Copy
  8. 8. Male Parts Female Parts Stamen consists of: 1. Anther 2. Filament Pistil consists of: 1. Stigma 2. Style 3. Ovary (ovules inside)
  9. 9. Reproductive Structures • Petals: colorful structures that attract pollinators. • Sepals: surround and protect the flower bud.
  10. 10. Sepals: protect immature buds
  11. 11. Pollination Wind, insects or other animals transfer pollen from the anther of one flower to the stigma of another Flowers vary depending on pollination mechanism
  12. 12. Pollination Wind Pollination: Dull, scentless flowers with reduced petalsBees/Butterfly Pollination: Bright color, nectaries, scent. They sip nectar, get pollen on coats, transfer pollen from flower to flower Bird Pollination: Nectaries, bright colors, tube-like flowers Moth Pollination: White petals, open at night Fly Pollination:Rank odor, flesh colored petals
  13. 13. Tip of a tulip stamen with many grains of pollen.
  14. 14. Scanning electron microscope image of pollen grains from a variety of common plants: sunflower, morning glory, prairie hollyhock, oriental lily, evening primrose, and castor bean.
  15. 15. • Pollen Grain • Anther Sac Pollen grains contain two haploid cells produced through meiosis. 1- The Tube cell – will grow the pollen tube. 2- The Generative cell – will go through meiosis to create two sperm cells. tube cell generative cell
  16. 16. This slide is FYI – copy whatever you’d like
  17. 17. Seed and Fruit Development After fertilization, the petals and sepals fall off flower Ovary “ripens” into a fruit The ovule develops into a seed See Fig 13 on page 139 Life Science Text
  18. 18. Seed Dispersal Mechanisms- Allow plants to colonize new areas and avoid shade of parent plant Wind Dispersal - Flight mechanisms, like parachutes, wings, etc. Ex. Dandelion, maples, birch Animal Dispersal - Fleshy fruits which animals eat, drop undigested seeds in feces or burrs which stick to animals’ coats
  19. 19. Gravity Dispersal - Heavy nuts fall to ground and roll ex. acorns Water Dispersal - Plants near water create floating fruits ex. coconuts

×