Transcript Systems Chpt 4- Plants and their parts

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Questions to think about…
What are the
parts of a plant
that help it to
grow well?
What are the
functions of
these parts?
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Plants are systems
• A plant is a system.
• Although they can be
different in shape and
size, most plants have
the same main parts.
• Each plant part carries
out an important job.
leaf
stem
flower
roots
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What are the functions of plant
parts?
• Leaves
o
Leaves come in many shapes, sizes, colours,
textures and smells.
My Pals are Here! Science © 2008 Marshall Cavendish (Singapore) Private Limited
What are the functions of plant
parts?
• Leaves
Despite differences in appearance, leaves are
made up of the same basic parts.
o These are the leaf stalk, leaf blade and veins.
o
leaf stalk
veins
blade
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What are the functions of plant
parts?
• Leaves
Plants make their own food.
o Food is made in the leaves.
o
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What are the functions of plant
parts?
• Roots
o
Roots come in many shapes, sizes and
colours too.
roots
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What are the functions of plant
parts?
• Roots
The roots hold a plant firmly to the soil.
o Roots take in water and mineral salts for the
plant too.
o Mineral salts help the plants to grow well.
o
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What are the functions of plant
parts?
• Roots
o
Some roots store food for the plant.
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What are the functions of plant
parts?
• Stems
The stem supports a
plant.
o It holds the leaves up
so that they can get
sunlight to make food.
o
My Pals are Here! Science © 2008 Marshall Cavendish (Singapore) Private Limited
What are the functions of plant
parts?
• Stems
o
In some plants, the stem stores food.
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What are the functions of plant
parts?
• Stems
Stems connect the leaves and roots of a plant
together.
o Water and mineral salts taken in by the roots
travel up the stem to other parts of the plant.
o Food formed by the leaves moves down the
stem to other parts of the plant.
o
My Pals are Here! Science © 2008 Marshall Cavendish (Singapore) Private Limited
My Pals are Here! Science © 2008 Marshall Cavendish (Singapore) Private Limited
My Pals are Here! Science © 2008 Marshall Cavendish (Singapore) Private Limited