Monocots and Eudicots (Dicots)

Comparison of Plants and Seeds

Review: Classification of Plants Kingdom

- Subkingdom

- Division

Class

Order

PLANTS

Bryophytes (non-vascular)

Pteridophytes (vascular)

Spore producing (ferns) Seed producing

Gymnosperms (cone bearing)

Angiosperms (seed enclosed flowering plants)

MonocotyledonsEudicotyledons or dicotyledons

Comparing Monocots and Eudicots/Dicots

Actual pictures:

http://theseedsite.co.uk/monocots2.html

Leaf Venation

Eudicots (Dicots)

Flower Parts

Roots

Comparing Monocots and Eudicots/Dicots

Actual pictures:

http://theseedsite.co.uk/monocots2.html

Leaf Venation

Eudicots (Dicots)

Flower Parts

Roots

Comparing Monocots and Eudicots/Dicots

Actual pictures:

http://theseedsite.co.uk/monocots2.html

Leaf Venation

Eudicots (Dicots)

Flower Parts

Roots

Comparing Monocots and Eudicots/Dicots

Actual pictures:

http://theseedsite.co.uk/monocots2.html

Leaf Venation

Eudicots (Dicots)

Flower Parts

Roots

Comparing Monocots and Eudicots/Dicots

Actual pictures:

http://theseedsite.co.uk/monocots2.html

Leaf Venation

Eudicots (Dicots)

Flower Parts

Roots

Comparing Monocots and Eudicots/Dicots

Actual pictures:

http://theseedsite.co.uk/monocots2.html

Leaf Venation

Eudicots (Dicots)

Flower Parts

Roots

Comparing Monocots and Eudicots/Dicots

Actual pictures:

http://theseedsite.co.uk/monocots2.html

Leaf Venation

Eudicots (Dicots)

Flower Parts

Roots

Monocot Seed (corn)

Eudicot/Dicot Seed (bean)

Germination of Monocots and Eudicots

plumule

plumule

Embryo structures

Summary of Structures:

Embryo Mature Plant part:

1. radicle

2. epicotyl

hypocotyl

3. plumule

becomes root

becomes stem above cotyledons

becomes leaves and tip of stem

Monocot and Dicot (Eudicot) Seed Minilab

Ref. P. 595-6Materials: iodine dropper bottlesscalpelwatchglassmagnifying lensbean seed (soaked for 24 hours)corn seed (soaked for 24 hours) Instructions: 1)                 Take one of each seed and place in the watch glass.2)                 Using the magnifying lens, look for structures closely on the outside of the seed. The micropyle is the hole that allows the entry of water. The hilum is the point of attachment.3)                 Using the scalpel carefully bisect each seed.4)                 Examine the internal structures of each seed. Look for  Dicot/Eudicot Seed:Bean: cotyledons, hypocotyl, epicotyl, plumules, testa (seed coat) Monocot Seed:Corn: cotyledon, epicotyl (hard to see), endosperm, testa (seed coat) 5)                 Place 1-3 drops of iodine on each seed. Iodine turns dark blue or black in the presence of starch. Which seed contains more starch? What is the advantage of storing starch? 

Planting Bean and Corn Seeds—Hydroponics 

Your teacher will demonstrate this for you: 1)                 Take a 400 mL beaker and line it with rolled up paper towels so they cover the edge of the glass. Stuff some paper toweling in the center of the beaker so the towels firmly touch the edge of the glass of the beaker. Saturate the paper towels with water and place 1 cm of water at the bottom of the beaker. 2)                 Place 2 bean seeds and two corn seeds mid-way up the beaker. Spread them out around the edge and put them in different orientations (upside down and upright). 3)                 Label your name with pencil on the white window. Place the beaker in the window of the classroom.