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Plant Structure - 4th Grade

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by

William Begoyan

on 15 February 2017

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Transcript of Plant Structure - 4th Grade

Stem
Roots
Leaves
Plant Structure and Function
(page A46-A54 in your textbook)
By: Mr. Begoyan
Roots
are found in most plants (except algae and mosses).
Roots are made of a
series of tubes
that help transport water and nutrients from the soil to the plant.
Roots come in all sizes and shapes.
Usually, larger plants have larger roots.
In some plants, roots act as storage for excess energy (sugar).
Root hairs
are the smallest parts of roots.
Stems are the main body of the plant and are found above ground.
Nodes are structures found on the stem.
They turn into new stems or leaves.
Tree trunks are big stems.
And they can get very big....
Stems are made of tubes that carry water, food, and nutrients from and to roots.
The tubes are called
Xylem
and
Phloem.
Questions

1. What is the purpose of roots?

2. Name the 2 plants that do not have roots.

3. What is the structure of roots?

4. What is the smallest part of a root?

5. What are stems?

6. What are nodes?

7. What is the structure of stems?
Near the base of the leaf is the
Petiole,
which connects to the node.
The body of the leaf is called the
Blade.
The
Midrib
adds structure to the leaf and connects to the petiole.
Veins
connect to the Midrib and transport water, sugar, and nutrients around the leaf.
On the surface of the leaf are tiny openings called
Stoma
that let carbon dioxide in and oxygen out.
Questions
1. What do we call the body of the leaf?
2. What 2 things does the Petiole connect to?
3. What function does the Midrib serve?
4. What is the purpose of veins?
5. How do gasses enter and leave the leaf?
Full transcript