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Support and transport systems in plants
Unit 1
Root
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Cards (12)
What is the anatomy of a plant?
It is its
internal
structure.
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What will you learn about in this unit regarding dicotyledonous plants?
You will learn about the structure and functions of tissues that make up the
root
and
stem
.
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What are the key questions in Unit 1 regarding dicotyledonous plants?
Which tissues make up the
root
and
stem
?
How are tissues arranged in the root and stem?
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What is the endodermis in dicotyledonous plants?
It is the tissue that surrounds the central vascular tissue.
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What is the cortex in dicotyledonous plants?
It is the tissue between the
epidermis
and
vascular tissue
in roots and stems.
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What is the Casparian strip?
It is a waxy, waterproof band in the cell walls of the cells of the
endodermis
.
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What is the pericycle?
It is a layer of
parenchyma
cells that forms
lateral roots
.
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What is vascular tissue composed of?
It is composed of
xylem
and
phloem
.
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What is cambium in dicotyledonous plants?
It consists of cells that can divide by
mitosis
to produce more
xylem
and
phloem
cells.
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What are the main components of root structure in dicotyledonous plants?
Epidermis
: Protects the root from injury and allows water uptake.
Cortex
: Transports water and stores starch.
Endodermis
: Channels water into the
xylem
.
Pericycle
: Forms lateral roots.
Vascular tissue: Contains xylem,
phloem
, and
cambium
.
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What is the function of roots in dicotyledonous plants?
Roots anchor the plant in the soil and absorb water and dissolved
minerals
.
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What should you be able to do regarding the plant diagram in this unit?
Be able to
draw
it!
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