Flowers Think about how Form meets Function? (What does each part need to do and how does the shape...
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Transcript of Flowers Think about how Form meets Function? (What does each part need to do and how does the shape...
![Page 1: Flowers Think about how Form meets Function? (What does each part need to do and how does the shape help it do that?)](https://reader034.fdocuments.net/reader034/viewer/2022051418/56649ebd5503460f94bc6c6f/html5/thumbnails/1.jpg)
Flowers
Think about how Form meets Function?
(What does each part need to do and how
does the shape help it do that?)
![Page 2: Flowers Think about how Form meets Function? (What does each part need to do and how does the shape help it do that?)](https://reader034.fdocuments.net/reader034/viewer/2022051418/56649ebd5503460f94bc6c6f/html5/thumbnails/2.jpg)
![Page 3: Flowers Think about how Form meets Function? (What does each part need to do and how does the shape help it do that?)](https://reader034.fdocuments.net/reader034/viewer/2022051418/56649ebd5503460f94bc6c6f/html5/thumbnails/3.jpg)
Leaves
• Think about the color• Think about the shape• Think about the risks a
plant must face• The primary function of
a leaf is photosynthesis• Leaves also protect
(from predators and from drying out)
![Page 4: Flowers Think about how Form meets Function? (What does each part need to do and how does the shape help it do that?)](https://reader034.fdocuments.net/reader034/viewer/2022051418/56649ebd5503460f94bc6c6f/html5/thumbnails/4.jpg)
Roots• Think about the shape• Think about the materials inside
(what roots do we eat?)• Think about placement
(underground)• The primary function of a root is for
water absorption (through root hairs)
• Roots also function to store resources (starches, sugars, nutrients)
• They also anchor a plant in place (protection from wind and water)
![Page 5: Flowers Think about how Form meets Function? (What does each part need to do and how does the shape help it do that?)](https://reader034.fdocuments.net/reader034/viewer/2022051418/56649ebd5503460f94bc6c6f/html5/thumbnails/5.jpg)
♀ (Carpel)♂
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Flower Parts:
Sepals: protect the flower while it is developing from a bud
Petals: used to attract pollinators (insects and birds)
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Petals
• Think about the pattern (it may look different in visible vs. UV light)
• Think about the scent• Think about the color• Think about the function of the flower
(reproduction)• The function of a petal is primarily to attract a
pollinator!• Pollinators bring genetically unique pollen to
fertilize the egg deep within the flower.
![Page 8: Flowers Think about how Form meets Function? (What does each part need to do and how does the shape help it do that?)](https://reader034.fdocuments.net/reader034/viewer/2022051418/56649ebd5503460f94bc6c6f/html5/thumbnails/8.jpg)
♀ (Carpel)♂
![Page 9: Flowers Think about how Form meets Function? (What does each part need to do and how does the shape help it do that?)](https://reader034.fdocuments.net/reader034/viewer/2022051418/56649ebd5503460f94bc6c6f/html5/thumbnails/9.jpg)
Female Parts of the Flower• Pistil/Carpel: all the female parts together
– Stigma: covered in a sticky substance that pollen from another plant will stick to
– Style: raises the stigma away from the ovary to reduce chances of self-pollination
– Pollen Tube: tube that pollen of the right species will make to travel down to reach egg
– Ovary: Protects the ovule – will become the fruit after fertilization
– Ovule: will produce one or more eggs and become a seed around embryo after fertilization
– Egg: like an egg in animals – contains ½ the genetic information to form a new individual
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♀ (Carpel)♂
![Page 11: Flowers Think about how Form meets Function? (What does each part need to do and how does the shape help it do that?)](https://reader034.fdocuments.net/reader034/viewer/2022051418/56649ebd5503460f94bc6c6f/html5/thumbnails/11.jpg)
Male Parts of the Flower
• Stamen: All the male parts together– Anther: Contain pollen sacs that release pollen
onto pollinators who then transfer it to the stigma of another flower
– Pollen: similar to sperm in animals – contains ½ the needed genetic material to make a new individual
– Filament: the stalk of the anther that puts it in position to be picked up by pollinators
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♀ (Carpel)♂
![Page 13: Flowers Think about how Form meets Function? (What does each part need to do and how does the shape help it do that?)](https://reader034.fdocuments.net/reader034/viewer/2022051418/56649ebd5503460f94bc6c6f/html5/thumbnails/13.jpg)
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Armorphophallus titanum 2.7 m flower
• “stinking strongly of putrefying roadkill and colored deep burgundy to mimic rotting flesh”
• What do you suppose pollinates this flower – the largest flower in the world?
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• Notice the liquid on the tips of the stigma. • This helps the pollen stick and also hydrates it.
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• Notice the ovules that are exposed after cutting.• These will be pollinated by pollen that lands on the
stigma.
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♀ (Carpel)♂