notes on seeds!. phylum vascular angiosperms what are these?! network of veins xylem carries...
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Kingdom: Plants
Notes on Seeds!
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Phylum Vascular
Angiosperms What are these?!
Network of veins Xylem carries
water___(up or down?)
Phloem carries down food
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Important Prefixes
Epi Means up
Hypo Means down
That’s right: Scientists still use Greek all the time!
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Seeds
Made up of three main parts!
1) Embryo (tiny plant)A. Consists of
Radicle Another word for
roots
First part of the seed to emerge during germination
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3 Parts of Embryo
B. Hypocotyl The stem
Found above the radicle
In some plants, this becomes enlarged as a storage organ
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Seeds
C. Epicotyl The leaf
In monocot plants, the first thing to appear coming out of the ground is the epicotyl
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Main Parts of Seeds
2. Cotyledon Food supply for the
embryo Until the embryo
can produce food for itself through roots and leaves
Depends on the size of the seed
Larger seeds have food supply that can last 2 weeks!
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Main Parts of Seeds
3. Seed Coat Protective Coat The tiny plant is
called an embryo because it cannot survive on its own!
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Germination
When the seed starts to grow!
Depends on: Moisture levels Gases Temperature.
Some seeds lie dormant for many years!
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Types of Seeds
Monocotyledon (Monocot)Dicotyledon
(Dicot)
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Monocotyledon-(Monocot)
A seed with one seed leaf (cotyledon Does not naturally break
into two parts Examples:
Lilies Onions Garlic Grass Corn Rice Oats Barley
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Monocots
Characteristics On the flowers, the
stamen and petals come in multiples of 3’s.
Leaves have parallel veins
Vascular tissue (Xylem and Phloem) are spread evenly throughout the stem.
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Monocot Seed!
Draw the diagram and look at your previous notes to fill in the missing labels!
A. ______________.B. ______________.C. ______________.D. ______________.
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Dicotyledon-(Dicot)
A seed with two seed leaves Naturally breaks into two parts 190,000 of the 260,000 species of plants are
dicots! Examples: peas, beans, peanuts, apples,
tomatoes, potato
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Dicots
Characteristics Flowers
Stamen and petals are in multiples of 4 or 5.
Leaves Have branching
veins Stem
Vascular tissue grows on the outside ring. Trees making a
ring!
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Dicot Seed (please draw)
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Monocot or Dicot?
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Monocot or Dicot?
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Monocot or Dicot?
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Monocot or Dicot?
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Monocot or Dicot?
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Monocot or Dicot?
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Monocot or Dicot?
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Monocot or Dicot?
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Monocot or Dicot?
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Monocot or Dicot?
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Parts of a seed and embryo Differences between Monocot and Dicot Characteristics of them both
What we learned today