Transcript The Plant Kingdom: Form and Structure

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Warm up
 What
is a plant? Write down how you would
describe what a plant is in every day words
to a friend.
 Then, make
a list of words that you think of
when you hear the word “plant”
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The Plant Kingdom:
Form and Structure
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What are Plants?
They
are Organisms
Make
their own Food
Eukaryotic
Have
and Multicellular
organized Tissues
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What are Plants?
Plastids
(such as green chloroplasts)
Cell Walls
There
containing Cellulose
are many different types of
plants and each belongs to a different
plant group. Plant groups differ in the
way they Reproduce and the type of
Tissues they contain.
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Form and Structure
Most
plants have four different types
of organs:
Roots
Stems
Leaves
Flowers
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Form and Structure
Plant
organs are determined by their
relationship to Nodes
A
Node is a region where a leaf is (or
was) attached
Roots do not have Nodes
Stems have Nodes
Leaves do not have Nodes but are
attached to Stems at Nodes
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Root Systems
A
Root System is all the roots of a
plant.
There
are two main types of root
systems: Taproot System and Fibrous
Root System
Taproots:
reach
relatively deep into the ground
Examples: Carrots and Dandelions
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Root Systems
Fibrous
roots:
has a cluster of roots that are about
equal in size and may branch several
times
Example: Grass, onion
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Types of Stems

Stems that are hard and not very
flexible are called Woody Stems
This type of stem is capable of
supporting a lot of weight.

Softer and more flexible stems are
called Herbaceous Stems
Turgor Pressure helps to support
these stems as well as some
supporting cell types similar to
Woody Stems.
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Leaf Characteristics
 The
Blade is the flat, green part of a
leaf.
If
a leaf blade looks like it has several
individual leaves, it is called a
Compound Leaf.
Each
of the smaller pieces of the
blade is then called a Leaflet.
Veins
are water and sugar conducting
tissues.
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Leaf Characteristics

Parallel venation is when the veins of a
leaf run parallel to each other.
Palmate
venation is when veins branch
away from the base of the leaf
Pinnate
venation is when there is one
main vein extending the length of the
leaf with smaller veins branching away
from it along its entire length
The
part of the leaf between the node
and the blade is called the Petiole
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Leaf Characteristics

If there is only one leaf attached at a
node, the leaf arrangement is called
Alternate

If there are two leaves at each node,
then the leaves are Opposite

Three of more leaves per node is a
Whorled arrangement.
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“Build A Plant”
You will need:
A
partner
A
piece of white paper
Pencils, markers, or
Today’s
notes
colored pencils
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“Build A Plant”
Instructions:

Your group is to draw a plant of your creation and label
the organs of the plant.

You must show one of the different types of root
systems, distinguish what kind of stem it will have, and
describe the types of leaves it has.

Then you must name your plant

Write a description of where the plant will live.
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Have fun!