Flowering Plants

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Flowering Plants

• By Donnie G.

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Characteristic of Flowering Plants

• Fossils prove that plants first evolved about 130
  million years ago.
• Flowers have male and female sex parts.
• Male makes the pollen
• Female makes the egg

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Angiosperm Classification

• Dicot
• Di means Two. A dicot seed has two
  cotyledons.
• Branching vein patterns.
• Large, thick taproots.
• Petals are in multiples of four or five.

• Monocot
• mono- means one. A monocot seed hos only one
  cotyledon.
• Narrow parallel veins
• Fiberous roots
• Petals are in multiple of three.

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Vascular Plants

• Plants have tubes that transport water, sugar and
  minerals to the root system, the stem and leaves.
• Xylem Water and minerals
• Phloem Glucose and other sugars

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Root System

• Root Functions
• Support and anchor the plant.
• Absorb water and minerals from soil.
• Store glucose in the form of starch.

• Root Types
• Fiberous roots small roots that grown near the
  surface.
• Tap Roots A thick main root that grows straight
  into the ground.

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Flower Structure

• Sepals
• Staman
• Anther
• Pistil
• stigma

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New Plants from seeds

• Seed Germination

1. Shoots grow upward and break the ground
surface.
2. Roots grow downward. Root hairs absorb water
and minerals.
3. True leaves begin to grow. Cotyledons contain
stored energy for plant growth.
4. True leaves open . Plants begin photosynthesis.
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Vocabulary
Monocot any of a class or subclass (Liliopsida
or Monocotyledoneae) of chiefly herbaceous
seedplants having an embryo with a single
cotyledon, usually parallel-veined leaves, and
floral organs arranged in cycles of three --
compare
Dicots any of a class or subclass (Magnoliopsida
or Dicotyledoneae) of angiospermous plants that
produce an embryo with two cotyledons and usually
have floral organs arranged in cycles of four or
five and leaves with reticulate venation --
compare
a complex tissue in the vascular system of higher
plants that consists of vessels, tracheids, or
both usually together with wood fibers and
parenchyma cells, functions chiefly in conduction
of water and dissolved minerals but also in
support and food storage, and typically
constitutes the woody element (as of a plant
stem)