Post on 01-Apr-2015
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Monocots vs. Dicots• Monocot seeds include grasses, such as
corn and rye, and grains such as wheat and rice.
• A monocot seed contains one cotyledon, or seed leaf, in its embryo.
• Food storing tissue called endosperm surrounds the embryo.
• When the seed sprouts, the cotyledon stays below ground to absorb nutrients and transport those nutrients to the seedling.
All grasses are Monocots
Dicots
• Include beans, peanuts, apples, and just about every tree and garden vegetable.
• Inside are two cotyledons (seed leaves)
• These cotyledons absorb and store food from the endosperm before the seed sprouts. Once the seed sprouts, the two cotyledons emerge from the soil
Beans and Peas are Dicots
Roots
• Monocots- have fibrous roots that spread and branch out
• Dicots usually have one long, thick root called a taproot. Small secondary roots grow outward from the taproot.
Stems
• Stems contain vascular tubes that carry food downward (phloem) and water and minerals upward (xylem) in the plant.
• Monocots- These tubes are scattered throughout the stems in no particular pattern.
• Dicots- These tubes are arranged in a ring around the center of the stem.
Leaves
• Leaves of monocots have parallel veins.
• Leaves of dicots have veins that form branching patterns.
Flowers
• Monocots- Flower parts are in multiples of three. Lilies for example have three petals, three sepals, and six stamens.
• Dicots- Usually in multiples of 2, 4, or 5.