Monocots and Eudicots (Dicots)

1
Monocots and Eudicots (Dicots)

• Comparison of Plants and Seeds

2
Review Classification of Plants
PLANTS

• Kingdom
• - Subkingdom
• - Division
• Class
• Order

Bryophytes (non-vascular)
Pteridophytes (vascular)
Spore producing (ferns)
Seed producing
Gymnosperms (cone bearing)
Angiosperms (seed enclosed flowering plants)
Monocotyledons
Eudicotyledons or dicotyledons
3
Comparing Monocots and Eudicots/Dicots
Eudicots (Dicots)
Flower Parts
Leaf Venation
Roots
Actual pictures http//theseedsite.co.uk/monocots
2.html
4
Comparing Monocots and Eudicots/Dicots
Eudicots (Dicots)
Flower Parts
Leaf Venation
Roots
Actual pictures http//theseedsite.co.uk/monocots
2.html
5
Comparing Monocots and Eudicots/Dicots
Eudicots (Dicots)
Flower Parts
Leaf Venation
Roots
Actual pictures http//theseedsite.co.uk/monocots
2.html
6
Comparing Monocots and Eudicots/Dicots
Eudicots (Dicots)
Flower Parts
Leaf Venation
Roots
Actual pictures http//theseedsite.co.uk/monocots
2.html
7
Comparing Monocots and Eudicots/Dicots
Eudicots (Dicots)
Flower Parts
Leaf Venation
Roots
Actual pictures http//theseedsite.co.uk/monocots
2.html
8
Comparing Monocots and Eudicots/Dicots
Eudicots (Dicots)
Flower Parts
Leaf Venation
Roots
Actual pictures http//theseedsite.co.uk/monocots
2.html
9
Comparing Monocots and Eudicots/Dicots
Eudicots (Dicots)
Flower Parts
Leaf Venation
Roots
Actual pictures http//theseedsite.co.uk/monocots
2.html
10
Monocot Seed (corn)
11
Eudicot/Dicot Seed (bean)
12
Germination of Monocots and Eudicots
plumule
plumule
Embryo structures
13
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
14
Monocot and Dicot (Eudicot) Seed Minilab
Ref. P. 595-6 Materials   iodine dropper
bottles scalpel watchglass magnifying lens bean
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?  
15
Planting Bean and Corn SeedsHydroponics   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.