Monocot versus Dicots

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Flowering PlantsMonocot versus Dicots
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Plantae Kingdom

• Plants have

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• Cells
• Cell walls made of cellulose
• Chloroplasts which contain chlorophyll
• Roots, Leaves, Stems
• Photosynthesis
• CO2watersunlight O2glucose

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Monocots Dicots

• Botanists are able to divide the 235,000 species
  of angiosperms(flowering plants) into two large
  groups based on the structure of their seeds
• Inside the seeds of angiosperms are tiny
  embryonic leaves called cotyledons. The seeds of
  one group of angiosperms have one cotyledon,
  called monocotyledons or monocots.
• Other angiosperms have two cotyledons. These are
  called dicotyledons or dicots

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Cotyledon (seed leaf)Monocots versus Dicots
One cotyledon (seed leaf)
Two cotyledons (seed leaves)
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LeavesMonocot versus Dicots
Base of a Monocot Leaf Note the Sheath which
connects the Blade to the Stem
Typical Dicot Leaf with Reticulate (Net) Venation
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Monocot Examples

• Tulips, daffodils, irises, lilies, palm trees
• Do you see
• veins that are
• parallel?

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Dicot Examples

• Buttercups, peas, roses, sunflowers, maple trees,
  and dandelions
• Do you see the
• netlike veins?

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Which is which?
A is _____________
B is __________
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StemsMonocot versus Dicot
Cross Section of a typical Dicot Stem
Cross Section of Corn which is a typical Monocot
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Root SystemDicot versus Monocots
Dicot
Monocot
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Floral PartsMonocots versus Dicots
Monocots
Dicots
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